Markup vs. Margin: the confusion that eats your profit

If you want to know how to correctly calculate profit margin, you first need to separate two concepts that almost everyone confuses: markup and margin.

Markup is how much you add on top of cost. Margin is how much is left over relative to the selling price. They sound like the same thing. They aren't.

Example with numbers:

Your product costs $60 to produce. You apply a 100% markup — you double the cost. Selling price: $120. Simple so far.

Now, what's the margin? Margin = (120 - 60) / 120 = 50%.

A 100% markup resulted in a 50% margin. Two different numbers for the same transaction.

Where the confusion is costly:

When markup differs from 100%, the gap between the two numbers grows — and that's where people get lost.

50% markup on $60 = selling price of $90. Margin = (90 - 60) / 90 = 33.3%. Someone who thought they had 50% margin actually has 33%.

30% markup on $60 = selling price of $78. Margin = (78 - 60) / 78 = 23%. Not 30%.

The practical rule:

Markup always looks larger than the real margin. If you use markup to set prices but look at margin to evaluate profit, the numbers will disagree — and the profit you expected won't show up in your cash.

Neither is wrong. Markup is used to calculate price from cost. Margin is used to evaluate how much is left from each sale. The problem is using one while thinking it's the other.

Markup always looks larger than the real margin. Always. Those who separate the two profit. Those who confuse them pay the difference.

The Calculadora de Preços shows markup and margin side by side — with your numbers. No sign-up required.