How Companies Make Money
The Money Machine
Syllabus
From Module 1 — read a sample
Revenue and profit are not the same thing, and confusing the two is how smart people get fooled by businesses that are quietly going broke. Revenue is total money coming in. Profit is what remains after subtracting everything it cost to earn that revenue. A business that grows revenue while losing more money on every transaction is not on a path to success — it is accelerating toward collapse.
The key concept here is unit economics: the profit or loss on a single transaction, stripped of everything else. If a company loses $10 every time it sells something, that loss is the unit economics. Selling more units does not improve it — it just multiplies the loss. The only things that can fix negative unit economics are raising prices, cutting costs, or both. Scale alone cannot save a structurally losing transaction.
Economists distinguish between variable costs, which scale proportionally with every sale (raw materials, delivery labor, payment processing fees), and fixed costs, which stay flat regardless of how many units you sell (office rent, executive salaries, software infrastructure). Fixed costs do improve per unit as you grow — a $1M software system costs $1 per unit if you have a million users and $1,000 per unit if you have a thousand. But variable costs do not improve automatically just by doing more volume. If your groceries cost $52 and you charge $65 but spend $17 on labor and fees, you lose money on every order no matter how many orders you take.
Think of it like a lemonade stand that charges $1 per cup but spends $1.50 on lemons and sugar alone. Selling more cups makes the losses bigger, not smaller — unless you can renegotiate the price of lemons or charge $2 per cup.
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