Margin vs Markup: The Difference, With Numbers That Show Why It Matters
Margin and markup describe the same profit from opposite directions, and confusing them is the most common pricing error in small business. Here is the arithmetic, a conversion table, and the three places the mistake costs real money.
Margin vs Markup: The Difference, With Numbers
Margin and markup measure the same profit. They differ only in what they divide it by. Margin divides profit by the selling price. Markup divides the same profit by the cost. Because the selling price is always the larger of the two numbers, margin is always the smaller percentage, and the two are never interchangeable.
That sounds like a technicality until you price something. A supplier quotes a 30% markup, you record it as a 30% margin, and every forecast built on that line is seven percentage points optimistic. This article works through the arithmetic, the conversion in both directions, and the three specific situations where the confusion costs money.
Try the margin calculatorEnter any two of revenue, cost, and margin, and get the third with the markup equivalent shown alongside.The arithmetic, side by side
Take one transaction. You buy an item for $60 and sell it for $100. The profit is $40 under either definition. What changes is the denominator.
Margin can never exceed 100%, because profit cannot be more than the price. Markup has no ceiling: an item costing $1 and selling for $50 carries a 4,900% markup and a 98% margin. Whenever you see a percentage above 100, you are looking at markup.
Converting between the two
You will regularly need to move between the two, because suppliers quote markup and accountants report margin. The conversions are exact.
Swipe sideways to compare columns.
| Markup | Margin | Cost of $60 sells for |
|---|---|---|
| 10% | 9.1% | $66.00 |
| 20% | 16.7% | $72.00 |
| 25% | 20.0% | $75.00 |
| 33.3% | 25.0% | $80.00 |
| 50% | 33.3% | $90.00 |
| 66.7% | 40.0% | $100.00 |
| 100% | 50.0% | $120.00 |
| 150% | 60.0% | $150.00 |
| 300% | 75.0% | $240.00 |
Read across the middle row and the trap is obvious. A 50% markup sounds like half your revenue is profit. It is a third.
Pricing to a target margin: divide, do not add
This is where the error most often becomes money. You want a 40% margin on an item costing $60. The instinct is to add 40%, giving $84. That is a 40% markup and a 28.6% margin, eleven points short of the target.
Three places the confusion costs real money
1. Reading a supplier quote as a margin
Wholesale and distribution quote markup, because they price up from cost. Retail and accounting report margin, because they report down from revenue. If your buying team records supplier markups in a sheet labelled "margin", every gross profit forecast is overstated. On $500,000 of annual cost at a quoted 35% markup, the real margin is 25.9%, not 35%. The gap between the forecast and the actual gross profit is roughly $61,000.
2. Discounting without checking what survives
A discount comes straight out of margin, and it comes out faster than most people expect. At a 40% margin, a 20% discount does not leave a 20% margin. It leaves 25%.
Swipe sideways to compare columns.
| Discount | Sale price | Profit | Margin |
|---|---|---|---|
| 0% | $100.00 | $40.00 | 40.0% |
| 10% | $90.00 | $30.00 | 33.3% |
| 20% | $80.00 | $20.00 | 25.0% |
| 30% | $70.00 | $10.00 | 14.3% |
| 40% | $60.00 | $0.00 | 0.0% |
A 40% discount on a 40% margin sells at cost. This is why a business running frequent 30% promotions on thin-margin lines can grow revenue every quarter and make less money each time.
3. Paying commission on the wrong number
Commission on revenue rewards volume. Commission on margin rewards profit. On a $100 sale at a 40% margin, 10% of revenue is $10 against $40 of gross profit, which is a quarter of it. If the salesperson can discount, revenue-based commission gives them every incentive to do so, because their pay falls by 10 cents per dollar discounted while the business loses the full dollar.
Which one should you actually use
Use margin for anything you report, compare, or plan against: gross profit, budgets, investor reporting, and comparisons with other businesses. Margin is bounded at 100%, expresses a share of revenue, and is the convention every accounting standard and benchmark uses.
Use markup at the point of pricing, because it is how you get from a known cost to a price. Just convert it to margin before it enters a report, and label the column correctly so the next person does not have to guess.
Swipe sideways to compare columns.
| Situation | Use | Why |
|---|---|---|
| Setting a shelf price from cost | Markup | You know the cost and are working forward |
| Reporting gross profit | Margin | Accounting convention and comparable across firms |
| Comparing against competitors | Margin | Bounded at 100%, so the scale is meaningful |
| Judging a discount | Margin | Shows directly how much profit survives |
| Negotiating with a supplier | Markup | Their pricing is built from cost |
| Paying sales commission | Margin | Aligns pay with profit rather than volume |
One more distinction: gross margin is not net margin
Everything above concerns gross margin, which subtracts only the direct cost of what you sold. Operating margin then subtracts rent, salaries, software, and marketing. Net margin subtracts everything left, including interest and tax.
A business can hold a healthy 45% gross margin and still lose money every month, because the overhead behind it is too large for the volume. Read gross margin as a question about the product and net margin as a question about the business, and never use one as evidence about the other.
Is margin or markup higher for the same sale?
Markup is always higher, because it divides profit by the smaller number. A 40% margin is a 66.7% markup on the same transaction.
How do I convert markup to margin?
Margin = markup / (1 + markup), using decimals. A 50% markup is 0.5 / 1.5 = 0.333, or a 33.3% margin.
How do I price something to hit a 30% margin?
Divide the cost by 0.70. An item costing $42 must sell for $60 to carry a 30% margin. Adding 30% to the cost would give $54.60, which is only a 23.1% margin.
Can margin be more than 100%?
No. Margin is a share of the selling price, so its ceiling is 100%, reached only if the item cost nothing. Markup has no ceiling, which is why any percentage above 100 is markup.
Why does a 40% discount wipe out a 40% margin?
Because both are percentages of the selling price. Discounting by exactly the margin percentage brings the price down to cost, leaving no profit at all.
Written by
Do The Calculation Team
Do The Calculation
Do The Calculation is built by a small team of data analysts and spreadsheet developers. Where a guide depends on a published formula, standard, or government rule, the calculator it links to names that source directly so you can check the number yourself.
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