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Business & Tax
Margin and markup are the two baselines for pricing products, and mixing them up costs real profit. Learn the formulas, the common error, and a routine that works.
By FreeCalculators Editorial · Published 2026-05-06 · Updated 2026-08-20 · 5 min read · 1,036 words
Margin and markup are the two baselines for pricing products, and almost every small business mixes them up at least once. They look similar, they sound similar, and they produce very different prices. A 50 percent markup is not a 50 percent margin — it is a 33 percent margin. Get the relationship backwards and you will either price yourself out of the market or quietly give away profit on every sale. This guide shows you the formulas, the common error, and a pricing routine that keeps the two straight.
Both numbers start from the same two inputs: what an item costs you and what you sell it for. They just express the relationship differently. Markup is the percentage you add to your cost; margin is the percentage of the selling price that is profit.
Sell a $40 product for $60 and your markup is 50 percent of cost, because you added $20 on top of $40. Your gross margin is 33.3 percent, because the same $20 profit is a third of the $60 selling price. Same dollars, two different percentages — and that gap is exactly where pricing mistakes happen.
| Markup applied | Price on $40 cost | Gross margin | Profit per sale |
|---|---|---|---|
| 25% | $50 | 20% | $10 |
| 50% | $60 | 33.3% | $20 |
| 67% | $66.80 | 40% | $26.80 |
| 100% | $80 | 50% | $40 |
The classic mistake is treating markup as margin when setting a target: 'I want a 40 percent margin, so I will add 40 percent to cost.' A 40 percent markup produces a 28.6 percent margin, not 40 percent. On a $40 product you would end up about $4 short on every sale, and the shortfall compounds across every unit you move all year.
Say you make candles that cost $8 to produce, and you want a 40 percent gross margin. Work backwards from the selling price, not forwards from cost: price equals cost divided by (1 minus margin).
Pricing an $8 candle for a 40% margin
Target margin = 40% Price = cost / (1 - margin) = 8 / 0.60 = $13.33 Markup equivalent = (13.33 - 8) / 8 = 66.7% Profit per candle = 13.33 - 8 = $5.33 If you had used a 40% markup instead: Price = 8 x 1.40 = $11.20, profit = $3.20 per candle Margin gap per candle = 5.33 - 3.20 = $2.13 On 1,000 candles that is $2,130 of forgone profit
Both baselines have a job, and the businesses that stay profitable pick one and standardize it. Quoting in mixed units is where silent under-pricing lives.
Set prices with margin, check them with markup, and revisit every quarter as your cost of goods moves. Suppliers change prices, shipping rates shift, and your margin quietly erodes unless the price book follows. The businesses with the healthiest margins treat pricing as a recurring job, not a one-time launch decision.
Margin and markup are the two baselines for pricing products, and mixing them up costs real profit. Learn the formulas, the common error, and a routine that works. This guide explains the formula in plain English, walks a worked example with real numbers, shows the mistakes to avoid, and links the free calculator so you can run your own scenario in under a minute.
Comprehensive Guide
Read our business and tax guide for margins, payroll, and tax planning.
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How this guide was created
This guide was written and reviewed by FreeCalculators Editorial, drawing on published formulas, official government sources, and real calculator outputs from our 4 calculators in this category. Every claim is sourced; every formula is auditable. Read our review policy.