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Straight talk

This covers the foundations: the ideas that do most of the work in everyday money and business decisions. It's education, not personal financial advice, and tax and account rules differ by country. Your progress is saved in this browser only.

01 Finance · Lesson 01 of 13

Your money

Personal finance is mostly behaviour, not maths. But the maths explains why the behaviour matters.

The 30-second version
  • Spend less than you earn, automatically: save on payday, before you can spend it.
  • Keep 3–6 months of essential costs as an emergency fund.
  • Pay off expensive debt first. Compound interest works for you in savings and against you in debt.

Know where it goes

You can't fix what you don't measure. Track every expense for one month before writing any budget — most people underestimate their spending by a wide margin, especially on food and subscriptions.

A common starting split is 50/30/20: 50% needs, 30% wants, 20% saving and debt payoff. Treat it as a rough check, not a rule. In expensive cities, needs alone can be 60–70% of take-home pay; that's a signal to work on income or housing cost, not a personal failure.

The one habit that matters most

Pay yourself first. Set savings to move automatically on payday, so you're budgeting what's left instead of saving what's left.

Emergency fund

Keep 3–6 months of essential expenses in an easy-to-reach, insured savings account. Aim for the higher end if your income is irregular or you support others. This money isn't an investment; its job is to stop a car repair from becoming credit-card debt.

Debt: good, bad and expensive

Debt is a tool. The question is always: does what I'm buying earn or save more than the interest costs?

  • Expensive debt (credit cards, payday loans, often 20–30%+ APR): pay it off before investing. Paying off a 24% card is a guaranteed 24% return — no investment reliably beats that.
  • Moderate debt (car loans, personal loans): keep terms short and avoid borrowing for things that lose value fast.
  • Low-rate debt (some mortgages and student loans): often fine to pay on schedule while you invest.

Two payoff methods

MethodHowHonest verdict
AvalanchePay minimums on everything; extra money goes to the highest interest rate.Mathematically cheapest. Always.
SnowballExtra money goes to the smallest balance first.Costs more interest, but quick wins keep some people going. The best plan is the one you'll stick to.

Compound interest

Compounding means you earn returns on your earlier returns. Growth starts slow, then accelerates.

Future value = Starting amount × (1 + rate)^years Example: $10,000 at 7% for 30 years = 10,000 × 1.07^30 ≈ $76,123

Rule of 72: divide 72 by the yearly rate to estimate how many years it takes money to double. At 8%, about 9 years. At 24% credit-card interest, a balance you ignore doubles in about 3 years.

Inflation

Inflation is prices rising over time, so each dollar buys less. At 3% inflation, $100 today buys only about $74 of today's goods in 10 years. Cash sitting in a 0% account is quietly losing value. That's the reason to invest long-term money, not keep it all in cash.

Credit scores (US)

Lenders use your score to price loans. The rough order of importance:

  1. Payment history — never miss a payment. Turn on autopay for at least the minimum.
  2. Utilisation — how much of your limit you use. Under 30% is the common guideline; under 10% is better.
  3. Length of history — keep old no-fee cards open.
  4. Credit mix and new applications — minor factors.

Other countries use different scoring systems, though paying on time and using little of your limit help almost everywhere.

02 Finance · Lesson 02 of 13

Investing

Investing is buying things you expect to be worth more later, or that pay you while you own them. The hard part isn't picking winners. It's not sabotaging yourself.

The 30-second version
  • Higher returns come with bigger swings. "Guaranteed high returns" is a red flag.
  • Cheap index funds beat most professionals once fees are counted.
  • Fees compound too: 1% a year can cost a fortune over decades.

Risk and return are linked

Higher expected return comes with bigger swings in value. There's no free lunch. Anyone offering high returns with "no risk" is mistaken or lying.

AssetWhat it isTypical role
Cash / savingsBank deposits, money-market fundsSafety and short-term needs. Loses to inflation over long periods.
BondsLoans to governments or companies that pay interestSteadier than stocks, lower long-run return.
StocksPart-ownership of companiesLong-term growth. Can fall 30–50% in a bad year.
Real estateProperty, or funds that own propertyIncome plus growth. Illiquid and concentrated if you own one house.

Time horizon rule of thumb: money you need within about 5 years shouldn't be heavily in stocks. A crash right before you need it can force you to sell at the bottom.

Diversification and index funds

Diversification means not betting everything on one company, sector or country. An index fund buys every company in a market index, such as the S&P 500, for a very low fee.

The uncomfortable fact

Over 15+ years, the large majority of professional fund managers fail to beat a simple low-cost index fund after fees. If professionals with research teams mostly can't do it, a beginner day-trading on a phone app almost certainly won't.

Fees matter more than you think

A 1% yearly fee sounds tiny. It's charged every year on your whole balance, forever.

$100,000 for 30 years at 7% (≈0.05% index fund) → about $761,000 at 6% (same, minus 1% fee) → about $574,000 The 1% fee cost ≈ $187,000

Retirement accounts (US examples)

  • 401(k) employer match: if your employer matches contributions, contribute at least enough to get the full match. It's an instant 50–100% return.
  • Traditional vs Roth: Traditional gives a tax break now and you pay tax later; Roth is taxed now and grows tax-free. Roth tends to suit people who expect a higher tax rate later.
  • Other countries have their own versions (UK ISA/SIPP, Canada TFSA/RRSP, Australia super). The logic is similar: use tax-advantaged accounts first.

A sensible order of operations

  1. Small starter emergency fund.
  2. Get any employer match.
  3. Pay off high-interest debt.
  4. Full emergency fund (3–6 months).
  5. Max tax-advantaged accounts with low-cost diversified funds.
  6. Then taxable investing, extra mortgage payments, and other goals.

Red flags

  • "Guaranteed" high returns.
  • Pressure to decide today.
  • Returns that are suspiciously smooth.
  • You can't explain how the money is made.
  • Income depends on recruiting others.
  • Influencers paid to promote coins or courses.
04 Business · Lesson 04 of 13

How a business makes money

Every business, from a lemonade stand to Apple, comes down to: sell something for more than it costs, and don't run out of cash on the way.

The 30-second version
  • Margin = profit ÷ price. Markup = profit ÷ cost. They are not the same.
  • Break-even = fixed costs ÷ what each sale contributes.
  • Profit is not cash. Watch the bank balance.

The profit ladder

Revenue (what customers paid) − Cost of goods sold (COGS) (direct cost of what you sold) = Gross profit − Operating expenses (rent, salaries, marketing, software) = Operating profit − Interest and taxes = Net profit

Margin vs markup (people mix these up constantly)

Say a product costs you $60 and you sell it for $100.

Markup = profit ÷ cost = 40 ÷ 60 = 66.7% Margin = profit ÷ price = 40 ÷ 100 = 40%

Same deal, very different numbers. Always ask which one someone means. Margin can never exceed 100%; markup can.

Fixed costs, variable costs and break-even

  • Fixed costs stay the same however much you sell (rent, base salaries, software).
  • Variable costs rise with each unit (materials, shipping, payment fees).
  • Contribution margin = price − variable cost per unit. It's what each sale contributes towards fixed costs.
Break-even units = Fixed costs ÷ (Price − Variable cost per unit) Example: $5,000/month fixed, $25 price, $15 variable = 5,000 ÷ 10 = 500 units a month just to break even

Unit economics

Does each customer make you money? Two numbers answer that:

  • CAC (customer acquisition cost): total sales and marketing spend ÷ new customers.
  • LTV (lifetime value): average revenue per month × gross margin × months a customer stays.

A common guideline is LTV at least 3× CAC, and earning back CAC within about 12 months. If LTV is below CAC, growing faster just loses money faster.

Cash flow is not profit

Profit is an accounting idea; cash is what pays the bills. You can be profitable on paper and still go bust if:

  • Customers pay in 60 days but suppliers want payment in 30.
  • Stock (inventory) sits on shelves tying up cash.
  • Fast growth forces you to buy materials before customers pay.
The classic killer

Lack of cash, not lack of profit, is behind a large share of small-business failures. Watch your bank balance weekly and forecast it 13 weeks ahead.

Pricing

  • Cost-plus: cost + a markup. Simple, but ignores what customers would pay.
  • Value-based: price based on the value to the customer. Harder, usually more profitable.
  • Why price is powerful: on a 20% margin, a 5% price increase (if volume holds) raises profit by 25%. Most small businesses underprice.
05 Business · Lesson 05 of 13

Financial statements

Three reports tell you almost everything about a company's health. Learn to read them and you can judge any business, including your own.

The 30-second version
  • Income statement: did we make money?
  • Balance sheet: what we own and owe. Assets = liabilities + equity.
  • Cash flow statement: where the cash actually went.

Income statement — "Did we make money this period?"

Revenue, minus costs, equals profit, over a period such as a quarter or year. It's the profit ladder from Lesson 3.

Balance sheet — "What do we own and owe right now?"

Assets = Liabilities + Equity
  • Assets: cash, money owed by customers (receivables), inventory, equipment.
  • Liabilities: money owed to others, such as loans, supplier bills (payables) and taxes due.
  • Equity: what's left for the owners.

It always balances, because everything the company owns was paid for either with borrowed money or with owners' money.

Cash flow statement — "Where did the cash actually go?"

  • Operating: cash from running the business. This is the most important one.
  • Investing: buying or selling equipment, property or other businesses.
  • Financing: borrowing, repaying loans, raising equity, paying dividends.

A healthy mature business usually generates positive operating cash flow. Positive profit with negative operating cash flow year after year is a warning sign.

Ratios worth knowing

RatioFormulaTells you
Gross marginGross profit ÷ RevenueHow much each sale leaves after direct costs
Net marginNet profit ÷ RevenueWhat's left after everything
Current ratioCurrent assets ÷ Current liabilitiesCan it pay bills due in the next year? Below 1 is a caution sign.
Debt-to-equityTotal liabilities ÷ EquityHow much the business relies on borrowing
Return on equity (ROE)Net profit ÷ EquityHow well it uses owners' money
Context beats rules

"Good" ratios vary a lot by industry. A supermarket with a 2–3% net margin can be excellent; a software company at 3% might be struggling. Compare a business against its own history and against similar companies, not against a universal number.

03 Finance · Lesson 03 of 13

Funding & valuation

Where the money to start or grow a business comes from, what it costs you, and how people decide what a business is worth.

The 30-second version
  • You can fund a business from savings, a loan, or by selling shares. Each costs you something different.
  • An investor's share = their money ÷ the value after they invest.
  • Money tomorrow is worth less than money today.

Three ways to fund a business

SourceYou give upGood when
Bootstrapping (own savings, revenue)SpeedYou can grow from customer money. You keep full control.
Debt (loans, credit lines)Fixed repayments plus interest; often a personal guaranteeCash flow is predictable enough to cover repayments.
Equity (angels, venture capital)Ownership and some controlThe business can grow very large, very fast, and needs money to do it.
Reality check

Most businesses never raise venture capital and shouldn't try. VCs need a few investments to return their whole fund, so they push for huge, risky growth. That's often bad for a business that could be a very good, profitable, smaller company.

Dilution

Pre-money valuation = value before new money comes in Post-money valuation = pre-money + investment Investor's share = investment ÷ post-money Example: raise $250,000 at $1,000,000 pre-money Post-money = $1,250,000 → investor owns 250k ÷ 1.25M = 20%

A smaller slice of a bigger pie can be worth more, but only if the money actually makes the pie bigger.

Time value of money

A dollar today is worth more than a dollar next year, because today's dollar can be invested and because the future is uncertain. To compare money at different times, discount future amounts back to today:

Present value = Future amount ÷ (1 + rate)^years $1,000 received in 3 years at a 10% rate = 1,000 ÷ 1.1^3 ≈ $751.31 today

How businesses are valued

  • Multiples: value = a profit or revenue figure × a multiple seen in similar businesses. Small private businesses often sell for roughly 2–5× their yearly owner earnings; it varies widely.
  • Discounted cash flow (DCF): forecast future cash flows and discount each one to today. It's correct in theory but very sensitive to assumptions. Small changes to the growth or discount rate swing the answer enormously.
  • Assets: what the things it owns would sell for. Mainly used as a floor, or for asset-heavy businesses.

Honest caveat: valuation is part maths, part negotiation. A business is worth what a buyer will actually pay, and that links straight to the next lesson.

06 Marketing · Lesson 06 of 13

Marketing basics

Marketing is getting the right people to know you exist, understand why you're worth it, and buy. "The right people" does most of the work.

The 30-second version
  • Pick one specific customer, not everyone.
  • Say why you in one sentence.
  • Lead with the benefit; use the feature as proof.

Pick one customer, not everyone

"My product is for everyone" means your message lands with no one. Describe one specific customer so clearly you could find ten of them this week:

  • Who they are: "first-time landlords with one or two rental units", not "property owners".
  • What problem they have that they'd pay to fix.
  • Where they already spend time: groups, sites, events, newsletters.
  • What they use now instead of you. That's your real competition, even if it's a spreadsheet or "doing nothing".

A narrow start isn't a ceiling. Win one group, then expand to the next.

Positioning: say why you, in one sentence

For [customer] who [problem], [product] is the [category] that [main benefit]. Unlike [alternative], we [key difference].

Example: "For first-time landlords who dread tax season, RentLedger is the bookkeeping app that sorts every receipt automatically. Unlike a spreadsheet, it's ready for your accountant in one click."

That sentence is your positioning. Test it on a stranger. If they can't repeat what you do and who it's for after 5 seconds, simplify.

Benefits beat features

Feature (what it is)Benefit (what it does for them)
Automatic receipt scanningNo more shoebox of receipts in April
Meals delivered on SundayFive evenings a week back with your kids
24/7 supportYour site never stays down overnight

Lead with the benefit; use the feature as proof.

The offer is part of the marketing

What exactly do they get, for how much, and what happens if it doesn't work? A clear price, a simple bundle and a fair guarantee often lift sales more than a better ad.

Straight talk

The most common first-time mistake is buying ads before knowing who the customer is. Ads amplify a message. If the message is vague, they amplify nothing, at your expense.

07 Marketing · Lesson 07 of 13

Getting customers

A channel is how customers find you. You don't need all of them. You need one or two that work, done well.

The 30-second version
  • Your first customers come from people you can reach directly.
  • Pick one or two channels and do them well.
  • Own your audience with email. Ads come last.

The main channels

ChannelCostSpeedBest for
Direct outreach (messages, calls, your network)TimeFastYour first 10 customers
Communities (groups, forums, local events)TimeFastNiche audiences; help first, pitch second
Referrals and word of mouthLowMediumOnce people love the product
Short video and social postsTimeMediumShowing, not telling; builds trust
Content and search (articles, tools)TimeSlow (months)Long-term free traffic that compounds
Email listLowMediumTurning interest into sales; you own it
Paid adsMoneyFastScaling something that already sells
PartnershipsSharedMediumBorrowing someone else's audience

The funnel

Every sale moves through the same stages. Most businesses lose people at one stage in particular. Find yours and fix that first.

Aware → they hear about you Interested → they visit, follow or sign up Decide → they compare, ask questions, read reviews Buy → they pay Return → they buy again and tell friends

Rules that save money

  • Your first customers come from people you can reach directly. Don't wait for strangers to find you.
  • Focus on one or two channels. Five half-done channels usually lose to one done properly.
  • Own your audience. Social followers can disappear if a platform changes its rules. An email list is yours.
  • Ads come last. Spend on ads once you know your message and your numbers. Then they pour fuel on something that already works.
Try it

List 20 people who match your customer and could hear from you this week. Message 10 of them. Ask about the problem, not your product. Their words become your marketing copy.

08 Marketing · Lesson 08 of 13

Measuring marketing

If you can't measure it, you can't tell good marketing from expensive guessing. Five numbers cover most of what matters.

The 30-second version
  • Five numbers matter: conversion rate, CAC, ROAS, LTV and payback.
  • Likes and views feel good; sales pay the bills.
  • Change one thing at a time so you know what worked.

The five numbers

Conversion rate = people who did it ÷ people who could have CAC (cost per customer) = marketing spend ÷ new customers ROAS (return on ad spend) = revenue from ads ÷ ad spend LTV (lifetime value) = revenue per month × gross margin × months they stay Payback = CAC ÷ (revenue per month × gross margin)

Worked example: you spend $600 and win 12 customers. CAC = $50. Each pays $25 a month at a 60% margin and stays 10 months: LTV = 25 × 0.6 × 10 = $150. LTV:CAC = 3:1, the common healthy guideline. Payback = 50 ÷ 15 = 3.3 months.

Vanity numbers vs real numbers

Feels goodActually matters
Followers, likes, viewsSign-ups and sales from those views
Website visitsConversion rate of those visits
Email list sizeRevenue per subscriber
Ad clicksProfit after the ad bill

Test one thing at a time

  • Change one element (headline, price, image) and keep everything else the same.
  • Wait for enough results. A handful of visitors can swing by luck; small tests mislead.
  • Track where people come from with tagged links (UTM tags) and a simple analytics tool, so you know which channel earned the sale.
Straight talk

Benchmarks you read online ("a good conversion rate is 3%") vary wildly by industry and traffic source. Your own numbers, measured consistently, beat any average.

Run your own numbers in the marketing calculators.

09 Negotiation · Lesson 09 of 13

Negotiation

Negotiation isn't a talent you're born with. It's mostly preparation, plus a handful of habits you can practise.

The 30-second version
  • Your power is your alternative if the deal fails.
  • Decide your walk-away point before you start.
  • Trade concessions. Never give them away for free.

Step 1: prepare four numbers and one plan

  • BATNA (Best Alternative To a Negotiated Agreement): what you'll actually do if this deal fails. Another job offer? Another supplier? Staying put? Your BATNA is your power. Improve it before you negotiate.
  • Walk-away point (reservation price): the worst deal you'll accept. Set it from your BATNA, and set it before you're in the room.
  • Target: an ambitious but defensible outcome. People who aim higher tend to get more.
  • Their side: estimate their BATNA and walk-away point too.

The ZOPA (Zone Of Possible Agreement) is the overlap between your walk-away point and theirs. If a seller won't go below $8,000 and a buyer won't go above $10,000, the ZOPA is $8,000–$10,000. If there's no overlap, no deal is possible on price alone, so you'll need to change the deal itself.

Seller accepts ≥ $8,000 → ← Buyer pays ≤ $10,000 ZOPA · $2,000 $6k $7k $8k $9k $10k $11k $12k
Any price inside the green zone works for both sides. Where in the zone the deal lands depends on anchoring, information and who can walk away.

Step 2: interests, not positions

A position is what someone says they want ("I need $90k"). An interest is why ("I need to cover my rent and feel valued"). Two sisters fight over one orange and split it in half. One wanted the juice, the other the peel for baking; they could have had 100% each. Ask why to find trades that cost you little and are worth a lot to them.

Step 3: anchor deliberately

The first number on the table pulls the final result towards it. That's anchoring.

  • If you know the market well, consider making the first offer, ambitious but with a reason attached.
  • If you don't know the market, let them go first, or anchor with research ("Similar roles pay $85–95k").
  • If they anchor extreme, don't counter off their number. Name it ("That's far from what we're seeing") and re-anchor with your own reasoning.

Step 4: listen more than you talk

  • Ask open questions: "What would make this work for you?" "How did you arrive at that number?"
  • Calibrated "how" questions push the problem back to them: "How am I supposed to do that on this budget?"
  • Label emotions: "It sounds like timing is the real pressure here."
  • Use silence. After you make an offer or hear one, stop talking. People fill silence with concessions and information.

Step 5: trade, don't give

  • Never make a concession for free. Use "If you can do X, I can do Y."
  • Make each concession smaller than the last. It signals you're near your limit.
  • Negotiate several things at once (price, timing, scope, payment terms, extras). Single-issue haggling is win/lose; multi-issue deals let both sides win.
  • Don't split the difference early. It rewards whoever anchored more extremely.

Common mistakes

  • Negotiating against yourself: lowering your ask before they've responded.
  • Revealing your walk-away point.
  • Accepting the first offer: it signals you left money on the table, and often leaves both sides less happy.
  • Treating it as a fight: you may work with this person for years. Be hard on the problem, soft on the person.
  • Not preparing a BATNA: walking in with no alternative is the single biggest weakness.
Ethics and self-interest agree here

Don't lie about facts ("I have another offer" when you don't). It's often illegal in contracts, it's easy to call out, and it ruins trust. You're allowed to decline to share information ("I'd rather not get into my current salary").

10 Negotiation · Lesson 10 of 13

Negotiation scripts

Word-for-word starting points. Adapt the wording so it sounds like you — scripts read robotically are worse than none.

The 30-second version
  • Make your ask, then stop talking.
  • Bring results and market data, not personal needs.
  • Cut scope, not price.

Salary — new job offer

When they ask your expectations early:
"I'd like to learn more about the role before naming a number. What's the budgeted range?"

When the offer arrives:
"Thank you. I'm excited about this role and the team. Based on [market data / my experience with X], I was expecting something closer to [target]. Is there flexibility on base?"

Then stop talking.

If base is fixed:
"I understand. Could we look at a signing bonus, extra leave, a title change, or a salary review at six months?"

Raise at your current job

"I'd like to talk about my compensation. Over the last year I [concrete result with a number: grew X by 20%, saved $Y, took on Z]. Market data for this role shows [range]. I'm asking for an adjustment to [number]. What would it take to get there?"

Bring results, not needs. "My rent went up" is your problem; "I saved the company $40k" is theirs.

Buying something (car, equipment, services)

"I'm ready to buy this week, and I'm comparing it with [alternative]. What's the best out-the-door price you can do?"

Then: "That's above what I can do. If you can get to [number], we can sign today."

Negotiate the total price, not the monthly payment. Monthly payments hide a longer loan and extras.

Selling / pricing your services

When a client says it's too expensive:
"I understand. Which part of the project matters most to you? We could reduce the scope to fit your budget rather than reduce the quality."

Cut scope, not price. Discounting trains clients to push back every time.

Rent or a bill

"I've been a reliable tenant/customer for [time] and I'd like to stay. Similar places nearby are listed at [number]. If I sign a [longer] lease, could we keep the rent at [number]?"

Preparation sheet (fill this before any negotiation)

QuestionYour answer
What do I actually want, and why (my interests)?
What's my BATNA if this fails?
Walk-away point
Target (ambitious + reason)
What do they want, and why?
Their likely BATNA
Things cheap for me but valuable to them
Questions I'll ask
11 Negotiation · Lesson 11 of 13

Getting people to say yes

People agree with you when they feel understood, see what's in it for them, and find it easy to say yes. None of that needs tricks.

The 30-second version
  • Listen first, then show what's in it for them.
  • Make the ask small and clear.
  • Treat objections as questions: acknowledge, ask, answer, check.

1. Listen before you pitch

Ask what they want and what worries them, then repeat it back in your own words: "So the real concern is the timeline, not the price?" People say yes far more readily to someone who has shown they understand the problem.

2. Make it about them

Your reasons are not their reasons. Translate every point into what they get.

About youAbout them
"I need this deal to hit my target.""This gets your launch done two weeks early."
"Our product has 40 features.""You'll stop doing the invoicing by hand."

3. Make the ask small and clear

A vague ask gets a vague answer. Say exactly what you want, and make the first step easy: "Can we try it for one month?" is easier to agree to than "Will you sign a year-long contract?"

4. Back it up honestly

  • Proof: a number, a result, a short example. "Three local gyms use it" beats "it's great".
  • Give first: share something useful before you ask. People like to return a favour.
  • Be consistent: link your ask to something they've already said they want.

5. Treat objections as questions

An objection usually means "I'm not sure yet", not "no". Answer the worry behind it:

Acknowledge: "That's fair, price matters." Ask: "Compared with what you're using now?" Answer: one clear reason, with proof. Check: "Does that cover it?"
Straight talk

Fake scarcity ("only 2 left!"), invented deadlines and pressure tactics can win one yes and lose the relationship. If the deal is good for them, honest persuasion is enough. If it isn't, it shouldn't happen.

12 Investors · Lesson 12 of 13

Pitching investors, simply

An investor wants to know three things: is the problem real, can you win, and can they make money? Answer those clearly and you've done the hard part.

The 30-second version
  • Problem, solution, proof, market, why you, the ask: in 60 seconds.
  • Know your numbers: revenue, growth, margin, CAC and LTV, burn and runway.
  • Runway = cash ÷ monthly burn.

The pitch in six lines

1. Problem: who has it, and how much it hurts 2. Solution: what you do about it, in one sentence 3. Proof: customers, sales, growth (traction) 4. Market: how many people have this problem 5. Why you: why your team wins 6. The ask: how much you're raising and what it pays for

Practise saying the whole thing in 60 seconds. If you can't, it isn't clear yet.

The numbers they'll ask about

NumberPlain English
Revenue and growthHow much you sell, and how fast that's rising each month
Gross marginHow much of each sale you keep after direct costs
CAC and LTVWhat a customer costs to win vs what they're worth
Burn rateHow much cash you spend each month beyond what comes in
RunwayMonths until the cash runs out: cash ÷ burn rate
Use of fundsExactly what the money will pay for, and what it will achieve
Runway = cash in the bank ÷ monthly burn Example: $90,000 ÷ $15,000 a month = 6 months

What makes investors nervous

  • Not knowing your own numbers.
  • "We have no competition." Everyone has competition, even if it's doing nothing.
  • Huge market claims with no customers yet.
  • Not being able to say what the money is for.
Remember

Investors are buying a share of your company, so this is a negotiation too. Your BATNA (another investor, or growing without them) is your power. The Funding & valuation lesson explains dilution.

13 Investors · Lesson 13 of 13

Staying calm under pressure

Tough questions aren't attacks. They're investors checking whether you know your business. Calm comes from preparation and a few simple habits.

The 30-second version
  • Prepare the 20 hardest questions before the meeting.
  • Pause, give the answer in one sentence, then explain.
  • "I don't know, here's how I'll find out" beats a confident guess.

Before: prepare the hard questions

Write down the 20 questions you'd least like to be asked, and an answer for each. Most tough questions are predictable: your numbers (especially your runway and burn rate), your competition, your biggest risk, why you, and why now. Practise them out loud with a timer, using the Investor pressure drill.

During: five habits

  1. Pause. Two seconds of silence before answering looks thoughtful, not lost.
  2. Answer first, then explain. Lead with the answer in one sentence, then give one or two reasons. Rambling is what pressure looks like.
  3. Clarify if you need to. "Do you mean this year's numbers or the forecast?" buys time and avoids answering the wrong question.
  4. Say "I don't know" well. "I don't know that number exactly. It's around X, and I'll send the exact figure tomorrow." Then actually send it. Guessing confidently and being wrong is far worse.
  5. Steer back to your strengths. Answer the question honestly, then connect it to something you're confident about: "That's a real risk, and here's how we're testing it."

In your body

Box breathing (before you walk in, or during a pause): breathe in 4 seconds → hold 4 → breathe out 4 → hold 4 Repeat 3 times.

Slow your speaking pace a little more than feels natural. Nerves speed you up; slower sounds sure.

Hostile or unfair questions

Stay polite and specific. Acknowledge the concern, answer with facts, and don't argue tone. "Fair challenge. Here's what our data shows…" You're also judging whether you want this investor. How they treat you now is how they'll treat you when things go wrong.

Straight talk

No technique replaces knowing your numbers. Most pressure in investor meetings comes from not being sure of your own business. Learn the numbers cold, and most of the nerves go with it.

= Tool

Calculators

Use these to check your own numbers and the practice problems. The formulas are shown so nothing is a black box.

Compound growth with monthly saving

Assumes returns compound monthly and additions are made at the end of each month. Real returns vary year to year.

Loan payment

Payment = P × r(1+r)^n ÷ ((1+r)^n − 1), r = yearly rate ÷ 12

Break-even

Margin and markup

How long to pay off a card?

>_ Tool

AI prompts

Copy these into Claude or any other AI assistant. The system prompt sets how the AI behaves for a whole conversation. The master prompts are reusable starting messages for specific jobs.

Check the AI's work too

AI assistants can be confidently wrong, especially with arithmetic, current tax rules, interest rates and laws. Re-run any important number in the calculators here, and verify anything legal or tax-related with an official source or a professional.

Where to put a system prompt

  • Claude.ai: create a Project and paste it into the project instructions, or use Settings → Profile → personal preferences for every chat.
  • API: send it as the system parameter.
  • No settings available? Paste it as your first message and add: "Follow these instructions for the rest of this conversation."
Aa Reference

Glossary

Plain-English definitions.

Anchoring
The first number put on the table, which pulls the final deal towards it.
APR
Annual percentage rate — the yearly cost of borrowing, including some fees.
Asset
Something you own that has value: cash, equipment, property, money owed to you.
BATNA
Best Alternative To a Negotiated Agreement — what you'll do if no deal happens.
Bond
A loan you make to a government or company in exchange for interest.
Break-even
The sales level where revenue exactly covers all costs: zero profit, zero loss.
Burn rate
How much more cash a business spends each month than it brings in.
CAC
Customer acquisition cost — sales and marketing spend ÷ new customers won.
Cash flow
Money actually moving in and out of the bank, as opposed to accounting profit.
Channel
A way customers find you: social media, search, ads, word of mouth, partnerships.
Churn
The share of customers who stop buying or cancel in a period.
COGS
Cost of goods sold — direct costs of making or buying what you sold.
Compound interest
Earning interest on previous interest, so growth accelerates over time.
Concession
Something you give up in a negotiation, ideally in exchange for something back.
Contribution margin
Price minus variable cost per unit — what each sale adds towards fixed costs.
Conversion rate
The share of people who take an action, such as buying, out of everyone who could have.
Dilution
Your ownership percentage shrinking when new shares are issued to investors.
Diversification
Spreading money across many investments so one failure doesn't sink you.
Equity
Ownership. On a balance sheet: assets minus liabilities.
Expense ratio
The yearly fee a fund charges, as a percentage of your money in it.
Funnel
The stages people move through on the way to buying: aware, interested, decide, buy.
Gross margin
(Revenue − cost of goods) ÷ revenue: how much of each sale you keep after direct costs.
Index fund
A fund that buys everything in a market index instead of picking stocks. Usually very cheap.
Inflation
The general rise in prices over time, which reduces what money can buy.
Liability
Something you owe: loans, unpaid bills, taxes due.
Liquidity
How quickly something can be turned into cash without losing value.
LTV
Lifetime value — gross profit you expect from a customer over the whole relationship.
Markup
Profit ÷ cost. Not the same as margin.
Net profit
What's left after every cost, interest payment and tax.
Objection
A reason someone gives for not saying yes yet, often a question in disguise.
Pitch
A short, clear explanation of your business and what you're asking for.
Positioning
One clear sentence on who you're for, what you do for them, and why you instead of the alternative.
Present value
What a future amount of money is worth today, after discounting.
Receivables
Money customers owe you for things already delivered.
Reservation price
Your walk-away point in a negotiation.
ROAS
Return on ad spend: revenue from ads divided by what the ads cost.
Runway
How many months until the cash runs out: cash in the bank ÷ monthly burn rate.
Traction
Proof that people want your product: customers, sales, growth.
Use of funds
What an investor's money will pay for, and what it will achieve.
Valuation
An estimate of what a business is worth.
ZOPA
Zone Of Possible Agreement — the overlap between both sides' walk-away points.