Markup vs margin: a 25% markup is only a 20% margin

Two words, two bases

Small business owners, freelancers and shopkeepers use "markup" and "margin" as if they meant the same thing. They do not, and the confusion quietly costs money.

• Markup = profit ÷ cost
• Margin = profit ÷ selling price

The profit is the same rupee amount in both. Only the denominator changes, and cost is always smaller than price, so markup is always the bigger percentage.

A worked example

You buy an item for ₹800 and add a 25% markup.

• Markup: 25% of ₹800 = ₹200
• Selling price: ₹800 + ₹200 = ₹1,000
• Margin: ₹200 ÷ ₹1,000 = 20%

A 25% markup is a 20% margin. If you set a goal of "25% profit" and add 25% to cost, you actually keep 20% of each sale. On ₹10 lakh of sales, the gap between 25% and 20% is ₹50,000 of profit that never arrives.

The pricing mistake in reverse

Now suppose you want a true 25% margin on the same ₹800 item. Adding 25% will not do. The price must be the cost divided by (1 − margin):

• Selling price = ₹800 ÷ 0.75 = ₹1,066.67
• Profit = ₹266.67, which is 25% of the price
• Markup needed = ₹266.67 ÷ ₹800 = 33.3%

To keep a quarter of every sale, you must mark up by a third.

Conversion table

And the other way round:

The rule behind both: margin = markup ÷ (1 + markup), and markup = margin ÷ (1 − margin). Notice that as margins rise, the markup needed rises faster. A 50% margin needs a 100% markup, which means selling at twice the cost.

Why it matters beyond the shop

• Discounts eat margin quickly. A 10% discount on a 25% margin product cuts the margin by far more than a tenth. See the break-even example on price cuts for how sales volume has to rise to compensate.
• Compare like with like. If a supplier quotes "20% margin" and you expect a "20% markup", you will each be thinking of different prices.
• Profit is not cash. A healthy margin can still leave a business short of money when customers pay late. Working capital cycle explains why.
• Freelancers need it too. If you add a percentage to your costs to set a day rate, check which base you used before you promise anyone a margin.

A quick way to check yourself

Take your selling price, subtract your cost, and divide by the price. If that number is lower than the percentage you thought you were adding, you have been working in markup. The profit margin calculator does the conversion for any cost and price you enter.

The takeaway

Pick one measure, label it, and convert before comparing. A 25% markup, a 20% margin and a 33.3% markup for a 25% margin are all consistent facts about different goals. Mixing them is how a business ends up earning less than its owner thinks.

This post is educational, not financial or business advice. Figures are arithmetic illustrations and exclude taxes, GST and other costs.