How to Price for Profit: Break-Even, Margin, and Markup
Start with break-even, not the price tag
Before you can say whether a price is good, you need to know how many units it takes to cover your costs. That is your break-even point, and it splits costs into two kinds:
- Fixed costs — rent, software, insurance, salaries: expenses that do not change with how much you sell.
- Variable costs — materials, packaging, payment fees, per-unit labor: costs that rise with each unit.
The gap between your price and your variable cost per unit is the contribution margin — the dollars each sale contributes toward fixed costs. Divide total fixed costs by that per-unit contribution and you get the number of units you must sell just to reach zero. For example, $6,000 of monthly fixed costs and a $30 contribution per unit means you break even at 200 units a month. Everything after unit 200 is profit. The break-even units calculator does this in one step, so you can test how a price change moves the target.
Markup and margin are not the same number
This is the single most expensive confusion in small-business pricing. Markup is measured against your cost. Margin is measured against your selling price. They describe the same sale from two different denominators, so the percentages never match.
Say a product costs you $10 and you sell it for $15. You added $5, which is a 50% markup ($5 on top of $10 cost). But you kept $5 of a $15 sale, which is only a 33% margin ($5 of the $15 price). If you meant to keep half of every sale and set a "50%" price by marking up cost, you actually kept a third. Here is how common markups translate:
| Cost | Markup % | Selling price | Actual margin % |
|---|---|---|---|
| $10 | 25% | $12.50 | 20% |
| $10 | 50% | $15.00 | 33% |
| $10 | 100% | $20.00 | 50% |
| $10 | 200% | $30.00 | 67% |
The pattern to memorize: to reach a target margin, the markup has to be larger than the margin. A 50% margin needs a 100% markup. Use the pricing and markup calculator to convert between the two so you never set a price on the wrong denominator.
Price backward from the margin you want to keep
Amateur pricing starts from cost and adds a number. Profitable pricing starts from the margin you need to keep and works backward to the price. The formula is simple: price = cost ÷ (1 − target margin).
Suppose a unit costs you $10 all-in and you have decided you need a 40% margin to cover overhead and profit. Price = $10 ÷ (1 − 0.40) = $10 ÷ 0.60 = $16.67. At that price you keep $6.67 of every $16.67 sale — exactly 40%. Contrast that with naively adding 40% to cost, which gives $14 and only a 29% margin. Same intention, very different result.
Setting the target margin is a business judgment: it has to cover your fixed costs at your realistic sales volume, plus the profit you actually want. That is why break-even and margin belong together — the margin has to be high enough that your expected volume clears the break-even you calculated in step one. Model the price with the pricing and markup calculator, then confirm the volume works in the break-even units calculator.
Putting it together into one pricing decision
The three numbers form a loop, and a defensible price satisfies all of them:
- Set a target margin that covers overhead and leaves the profit you want. Convert it to a price with cost ÷ (1 − margin).
- Check the break-even at that price. Divide fixed costs by the new contribution margin per unit to see how many units you must move.
- Reality-test the volume. If break-even needs more units than you can realistically sell, the price is too low — raise the margin or cut costs, and loop back.
Priced this way, you are never guessing whether a number is profitable; you know the margin it keeps and the volume it requires. A worked case ties it together: fixed costs of $6,000 a month, a unit cost of $10, and a target margin of 40% give a price of $16.67 and a contribution margin of $6.67 per unit. Break-even is $6,000 ÷ $6.67, or about 900 units a month. If you can realistically sell 1,200, you clear break-even with room to spare and the price holds. If 900 is a stretch, the honest move is to raise the margin (and price) or cut the $10 cost — not to hope volume shows up.
When you change a cost, a supplier, or a price, run the loop again — a small input change can move the break-even more than intuition expects, because it changes the contribution margin in the denominator. Keep the break-even units calculator and the pricing and markup calculator side by side and pricing stops being the scariest decision in the business and becomes the most controllable one.
Frequently asked questions
What is the difference between markup and margin?
Markup is measured against your cost; margin is measured against your selling price. A $10 item sold for $15 carries a 50% markup but only a 33% margin. They describe the same sale from different denominators, so the percentages never match and mixing them up erodes profit.
How do I calculate my break-even point?
Divide your total fixed costs by your contribution margin per unit (selling price minus variable cost per unit). The result is the number of units you must sell to cover all costs. Every unit sold beyond that point contributes profit. Lowering fixed costs or raising the contribution margin reduces the break-even volume.
How do I set a price from a target margin?
Use price = cost ÷ (1 − target margin). For a 40% margin on a $10 cost, that is $10 ÷ 0.60 = $16.67. Working backward from the margin you need is more reliable than adding a percentage to cost, which almost always produces a lower margin than intended.
What margin should a small business aim for?
The right margin varies by industry, cost structure, and competition, but it must be high enough that your realistic sales volume clears your break-even and still leaves the profit you want. Rather than copying a benchmark, back into the margin your fixed costs and target profit require at your expected volume.
Why does a 50% markup only give a 33% margin?
Because markup is a percentage of cost while margin is a percentage of the higher selling price. Adding $5 to a $10 cost is 50% of cost, but that same $5 is only a third of the $15 you charge. To keep half of each sale as margin you actually need a 100% markup.
Should I price based on competitors or on my costs?
Competitor prices tell you what the market will bear, but they do not know your cost structure. Start from your break-even and target margin to find the price you need, then compare it to the market. If your required price is far above competitors, the fix is usually lower costs or a differentiated offer, not an unprofitable price.
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