My First Business

Why aren't profit and cash the same thing?

Run any small business and you meet two different questions: are you profitable, and do you have cash? Profit is revenue minus costs over a period; cash is the money actually in the till right now. They diverge because timing and stock get in the way. A useful starting split is fixed costs (rent and other bills you pay whatever you sell) versus variable costs (ingredients and supplies that rise with each unit). The contribution margin — price minus variable cost per unit — is what each sale contributes toward covering fixed costs; once contributions add up to the fixed costs, you hit break-even and further sales become profit. But price and demand pull against each other: charge more per unit and you sell fewer, so the best price isn't simply the highest. Meanwhile buying inventory ties up cash before it comes back as sales — that's working capital. A shop can be profitable on paper yet run out of cash because too much is locked in unsold stock, which is why cash flow, not just profit, decides whether a business survives.

How the simulation shows it

You run a coffee stand month by month — setting the price, ordering stock, and spending on marketing — while profit and the cash balance move separately in response. Ordering too much inventory or pricing wrong shows the lesson directly: you can book a profit and still run short of cash.

Common misconceptions

• Profit and cash aren't the same. You can be profitable on paper and still run out of cash if too much money is tied up in unsold stock or arrives later than the bills.
• The highest price isn't the best price. Because demand falls as price rises, the profit-maximising price is a balance — charging more can mean selling too few to come out ahead.
• Fixed costs don't disappear on a slow month. Rent and standing bills are owed whatever you sell, so covering them is exactly why break-even and contribution margin matter.

Frequently asked questions

What is the difference between profit and cash?

Profit is revenue minus costs over a period; cash is the money actually available right now. They differ because of timing and because buying inventory ties up cash before sales bring it back.

What is contribution margin?

The price of a unit minus its variable cost — the amount each sale contributes toward covering fixed costs. Once total contributions cover fixed costs, you reach break-even.

What is break-even?

The sales level at which total contribution margin exactly covers fixed costs, so you make neither profit nor loss. Beyond it, each additional sale adds profit.

What are fixed versus variable costs?

Fixed costs — like rent — are owed whatever you sell; variable costs — like ingredients — rise with each unit produced. The split is what makes break-even and margin analysis possible.

How can a profitable business run out of cash?

By tying up cash in inventory or waiting on payments: the business looks profitable over the period but doesn't have money on hand to pay bills — a working-capital squeeze that can sink it.