Markup vs Margin: The Difference (With Examples + Calculator)
A small business owner buys a product for $50. She wants to make a tidy profit, so she adds 50% to her cost and sets the price at $75. In her head, she just earned a 50% profit margin. At tax time her accountant looks at the numbers and tells her the actual margin is 33.33%. She is convinced the accountant made a mistake. The accountant did not make a mistake. She did. She confused markup with margin — two numbers that describe the same dollar of profit from different angles and almost never produce the same percentage. This is the most common pricing mistake in small business. It hides in vendor emails, in pricing templates, in the spreadsheet you got from a friend. Once you see the difference, you cannot unsee it. The rest of this post is the entire fix — definitions, math, a conversion table, and the practical rule for which one to use when.
The 30-second answer
Markup and margin both describe how much money you make on a sale, but they divide that profit by different denominators. Markup divides profit by your cost — it answers "how much did I add on top of what I paid?" Margin divides profit by your selling price — it answers "what percentage of revenue did I keep?" Same dollars of profit, different reference points, different percentage.
Markup % = (Selling Price − Cost) ÷ Cost × 100Margin % = (Selling Price − Cost) ÷ Selling Price × 100For any sale that turns a profit, markup is always larger than margin. They are only equal in one trivial case — when both equal zero. The percentages drift further apart as profitability rises, which is why the confusion is most expensive at the high end of pricing decisions.
The math, with a real example
Walk through a real product. You import bags of single-origin coffee beans. Your landed cost per bag — including the bag itself, the label, and the shipping you ate to get them to your warehouse — is $50. You sell them at the farmers market for $100. The profit is straightforward: $100 minus $50 equals $50 of gross profit on every bag.
Now compute markup. Markup divides that $50 of profit by the $50 cost, then multiplies by 100. The answer is 100%. You doubled your money. In retail this is sometimes called "keystone pricing" — pricing at exactly 2× cost — and it produces a 100% markup by definition.
Now compute margin. Margin divides the same $50 of profit by the $100 selling price, then multiplies by 100. The answer is 50%. Half of every dollar that hits your bank account is gross profit. The other half went to paying for the coffee.
Both answers are correct. Neither is more "real" than the other. They describe the same $50 of profit from different angles, and which one you reach for depends entirely on the conversation you are in. A supplier emailing you about a price hike will talk in markup. The investor reading your P&L will talk in margin. A pricing rule written in markup language and read as margin will quietly cost you money on every unit you sell.
Why this matters in pricing
Different parts of the business speak different dialects. Wholesalers, distributors, and most product suppliers talk in markup, because markup is what they apply on top of their cost to set your price. Accountants, financial analysts, and retail reporting tools talk in margin, because margin is what shows up on income statements and what compares cleanly across businesses of different sizes.
When the two dialects collide, things go wrong fast. Your supplier emails: "Price it with a 40% markup, that gives you healthy margin." You hear "40% margin," set up your spreadsheet with the formulas, and price your products accordingly. The trouble is a 40% markup is only a 28.57% margin. You are tracking 11 points of margin that do not exist. Over a year of selling, that gap is the difference between a healthy business and one that cannot make rent.
The fix is not to ban one term — both are useful. The fix is to confirm which one you are talking about every time the number gets used. When a supplier or sales rep says a percentage, ask: "Is that markup on cost or margin on revenue?" When you set a pricing rule in your store backend, check whether the field expects markup or margin. The 30 seconds of clarification pays for itself the first time it stops a real mistake.
Conversion table: markup to margin
The fastest way to internalize the difference is a side-by-side table. The markup percentages below are the ones you will hear in supplier conversations and see in pricing playbooks. The margin equivalents are what those same prices produce on your income statement. Bookmark this table or recreate it in a sticky note next to your monitor — it is the single most useful reference in product pricing.
| Markup % | Equivalent Margin % |
|---|---|
| 10% | 9.09% |
| 15% | 13.04% |
| 20% | 16.67% |
| 25% | 20.00% |
| 30% | 23.08% |
| 33% | 24.81% |
| 40% | 28.57% |
| 50% | 33.33% |
| 60% | 37.50% |
| 75% | 42.86% |
| 100% | 50.00% |
| 150% | 60.00% |
| 200% | 66.67% |
Two patterns to notice. First, the gap between the two columns widens as the numbers grow — a 10% markup is only about one point off margin, while a 200% markup is more than 133 points off. Second, margin is mathematically capped at 100% (you cannot keep more than every dollar of revenue), but markup has no ceiling. A digital product that costs you a penny to deliver and sells for $99 has a 9,900% markup but only a 99.99% margin. If you want to plug in your own numbers, the markup calculator handles the conversion both directions and shows the equivalent margin alongside.
Which one should you use?
Use margin when you are reporting, comparing, or planning at the business level. Margin is the unit of measure on income statements, in investor decks, in benchmarking studies, and in tax filings. When someone asks "how is the business doing," they want margin. When you compare your shop to similar shops or your year to last year, you want margin.
Use markup when you are setting prices or talking to people in the supply chain. Markup is the unit of measure when a vendor quotes you, when you write a pricing rule, and when you train a sales team on quoting. It maps directly to the action ("take the cost, add this percentage, that is the price") in a way margin does not. If you are pricing a product, start in markup and let the profit margin calculator tell you what margin the new price produces.
Common mistakes
Four mistakes show up over and over once you start watching for this. Each one costs real money, and each one is preventable with a 30-second sanity check.
- Assuming markup and margin are the same. The original sin. A 40% markup is a 28.57% margin. A 100% markup is a 50% margin. Mixing them up always overstates how profitable a sale is, and it always understates how much price increase you need to hit a margin target.
- Applying one markup % across products with very different costs. A 30% markup on a $5 item is $1.50 of gross profit — and payment processing alone is around 2.9% + $0.30 of revenue, so on a $6.50 sale that is roughly $0.49 of fees, eating a third of your profit before any other cost. The same 30% markup on a $200 item leaves $60 of profit, which easily covers fees and contribution to overhead. Markup percentages need to scale down for high-priced items and scale up for low-priced ones to keep absolute dollar profits sane.
- Forgetting that markup is uncapped while margin caps at 100%. Margin maxes out at 100% (you cannot keep more than the revenue you took in), so when someone says "we run 200% margin" they almost certainly mean markup. The reverse — claiming markup numbers like "300%" — is fine and correct for premium goods, software, and high-IP categories, but it does not translate into a margin three times the size of revenue.
- Confusing gross margin with net margin. Gross margin is revenue minus cost of goods sold, expressed as a percent of revenue. Net margin is what is left after every operating expense, interest, and tax. A coffee shop with 70% gross margin can easily end the year at 4% net margin once rent and payroll come out. When you read or report a margin number, name which one — gross, operating, or net — or the number is meaningless.
Quick reference: what each number means
Try it yourself
Take your own numbers — your last invoice, a SKU from your catalog, your hourly rate — and run them through both calculators. The profit margin calculator will show you the margin, markup, gross profit, and cost ratio together in one panel. The markup calculator is dedicated to the pricing side, with a built-in markup-to-margin lookup table. When you are ready to think about the volume side of the business — how many units it takes to cover fixed costs — the break-even calculator picks up from there. And if you are running a sale, the discount calculator handles stacked discounts and the margin impact in one place.