Markup Calculator

Markup vs. Margin: The Difference That Trips Up Every New Business Owner

Markup and margin both describe the relationship between what something costs and what it sells for, and both are expressed as percentages, which is exactly why they get confused so often. But they answer different questions and use different denominators, and mixing them up leads to real pricing mistakes, sometimes pricing products too low to hit a profit target. This guide breaks down both concepts clearly, with the exact formulas and a side-by-side comparison.

What Is Markup?

Markup is the amount added to your cost price to arrive at your selling price, expressed as a percentage of the cost. It answers the question: "how much more than what I paid am I charging?"

Example: A product costs 400 to make and sells for 600. Markup: ((600 − 400) ÷ 400) × 100 = 50%. You marked the product up by 50% over cost.

What Is Margin?

Margin, more precisely gross profit margin, is the profit expressed as a percentage of the selling price, not the cost. It answers a different question: "what portion of each sale is actual profit?"

Example: Using the same numbers, cost 400, selling price 600. Margin: ((600 − 400) ÷ 600) × 100 = 33.3%. Even though the dollar profit is identical to the markup example (200), the margin percentage is lower than the markup percentage, because it's measured against a bigger number (the selling price is always bigger than the cost when there's a profit).

Why Markup Is Always Higher Than Margin

For any profitable sale, markup percentage will always be a bigger number than margin percentage, because markup divides by the smaller cost figure while margin divides by the larger selling price figure. A 100% markup, doubling your cost, only produces a 50% margin, not 100%. This is the single most common pricing mistake business owners make: setting a "50% markup" thinking it means a "50% margin," when it actually results in a 33.3% margin.

The gap between the two grows as the percentage increases. A 25% markup gives a 20% margin. A 100% markup gives a 50% margin. A 300% markup gives only a 75% margin. They converge only at very small percentages and diverge more sharply at higher ones.

Converting Between Markup and Margin

If you know one, you can calculate the other directly:

(Both expressed as decimals in this formula, so 50% markup is 0.5.) Using 50% markup: 0.5 ÷ 1.5 = 0.333, or 33.3% margin, matching the example above.

Working Backward: Finding Cost From a Target Margin

Businesses often set pricing goals in terms of margin, not markup, since margin ties more directly to overall profitability and is the figure investors and accountants usually care about. If you know your selling price and want a specific margin, you can calculate the maximum you can afford to pay for the product.

Example: You sell a product for 600 and want a 33.3% margin. Max cost: 600 × (1 − 33.3 ÷ 100) = 600 × 0.667 = 400. If your supplier charges more than 400, you won't hit your target margin at that price.

Which One Should You Actually Use?

Retailers and product-based businesses typically price using markup, since it's calculated directly off what they paid a supplier. Finance teams and investors typically evaluate a business using margin, since it reflects the true percentage of revenue that becomes profit, which is what matters for overall business health. Both numbers are useful, but knowing which one you're looking at, and communicating clearly which one you mean, prevents costly misunderstandings between purchasing, sales, and finance teams.