Small-Business Math · Chapter 5

Break-Even

The most calming number you can know. Enter your fixed costs, price and variable cost to see exactly how much you must sell.

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Enter fixed costs, price and variable cost, then press Calculate.
From the book — Chapter 5. Contribution = price − variable cost. Break-even units = fixed ÷ contribution (round up — you can't sell half an item). Margin of safety = expected − break-even.

Illustrative figures — the method the chapter teaches by hand. Everything stays in your browser — no sign-up, nothing stored.