Why is margin always smaller than markup?

Selling price is always larger than cost for a profitable sale (price = cost + profit), so dividing the same profit dollars by the larger price (margin) always produces a smaller percentage than dividing by the smaller cost (markup).

Is a 50% markup the same as a 50% margin?

No — a 50% markup produces only a 33.3% margin. To actually achieve a 50% margin, you'd need a 100% markup instead — a very common pricing mistake.

Why can't margin reach 100%?

A 100% margin would mean the selling price is 100% profit, implying zero or negative cost — which isn't a real scenario for anything with an actual production or acquisition cost.

Which one should I use for pricing decisions?

It depends on convention in your industry — retailers commonly think in margin (% of price), while some wholesale/manufacturing contexts think in markup (% of cost). Either is valid as long as you're consistent and clear about which one you're quoting.

What does it mean if my calculated markup or margin is negative?

It means you're selling below cost — a loss on every unit at that price, which the calculator flags directly.

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Finance

Markup vs. Margin Calculator

Convert between markup (on cost) and margin (on price) — they're never the same number.

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Last reviewed 2026-08-30

About the Markup vs. Margin Calculator

Converts between markup (profit as a percentage of cost) and margin (profit as a percentage of selling price) — two commonly confused numbers that are never actually equal for a profitable sale, since they divide the same profit dollars by two different bases.

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How to use it

Choose whether you know the markup % or the margin %.
Enter your cost (what you paid or produced the item for).
Enter the markup % (on cost) or margin % (on selling price).
Read the selling price, profit per unit, and both percentages side by side.

Formula

From markup: selling price = cost × (1 + markup % ÷ 100); profit = price − cost; margin % = profit ÷ price × 100. From margin: selling price = cost ÷ (1 − margin % ÷ 100); profit = price − cost; markup % = profit ÷ cost × 100.

Worked example

A $50 cost item with a 50% markup: selling price of $75, profit of $25 — which works out to a 33.3% margin, not 50%, since the same $25 profit divided by the larger $75 price (rather than the $50 cost) gives a smaller percentage.

Markup % → equivalent margin % (same sale, two numbers)

Markup % → equivalent margin % (same sale, two numbers)
Markup (on cost)	Margin (on price)
10%	9.1%
25%	20.0%
50%	33.3%
100%	50.0%
200%	66.7%
300%	75.0%

Interpreting your result

Margin can never reach or exceed 100%, since that would require a selling price with zero or negative cost — the calculator rejects a margin input at or above 100%. Markup divides profit by cost; margin divides the same profit dollars by the larger selling price — so margin % is always smaller than markup % for any profitable sale. A 50% markup is only a 33.3% margin, not 50%; reaching an actual 50% margin requires a 100% markup instead.

Recommendations

• Margin % is always the smaller of the two numbers for any profitable sale — if someone tells you their 'margin' is 100% or higher, they're almost certainly describing markup instead.
• To hit a target margin, don't just set markup equal to it — use the margin mode directly, or the reference table's conversion, since equal markup and margin percentages only coincide at 0%.
• Retail pricing conversations often mix up the two terms — always clarify whether a quoted percentage is 'on cost' (markup) or 'on price' (margin) before comparing numbers across sources.

Frequently asked questions

Markup is profit as a percentage of cost (what you paid); margin is profit as a percentage of selling price (what you charge). They use the same profit dollars but divide by two different, unequal bases.