Margin vs Markup: Why You Think You're Making 150% When You're Making 60%

Quick question. Something costs you $40 and you sell it for $100. What are you making?

Most people's instinct is "150%" — the $60 you made is 1.5× the $40 it cost. That math is fine, but it isn't your margin. It's your markup. Your margin is 60%.

Both numbers are correct. The problem is they get treated as the same thing, and they're not — the gap between them is exactly where businesses discount themselves to death.

Two formulas, one difference: the denominator

This is the only thing in this article you actually need to remember:

• Margin = (price − cost) ÷ price
• Markup = (price − cost) ÷ cost

The top half is identical — the $60 you made either way. Only the bottom changes: one divides by price, the other by cost.

Run the example:

Margin	(100 − 40) ÷ 100 = 60%
Markup	(100 − 40) ÷ 40 = 150%

Same sale, same $60, one is 60% and one is 150%.

How to keep them straight: markup is how much you add on top of what you paid — you're standing at the invoice looking up. Margin is how much of each dollar the customer hands you is actually yours — you're standing at the register looking down. Markup is always the bigger number, and the gap widens fast as margins rise.

Why mixing them up hurts: discounts

Here's the part that costs real money. If you believe your product has "150% of profit in it," then 30% off sounds completely harmless, right?

Cost $40, list price $100, 30% off means selling at $70:

At $100	$60 profit, 60% margin
At $70	$30 profit, 43% margin

You cut the price by 30% and your profit fell by half.

Go to 50% off — $50 — and you make $10 at a 20% margin. Half off the price, and your profit is down to a sixth. What one sale used to earn now takes six.

"There's 150% in this thing, a discount won't hurt" is how shops close. There is 60% in it, and the discount comes straight out of that 60% — not out of the 150%.

Conversion table: markup → margin

If you price by multiplying your cost, here's what that actually leaves you:

How you price it	Markup	Actual margin
cost × 1.5	50%	33%
cost × 2 ("keystone")	100%	50%
cost × 2.5	150%	60%
cost × 3 (common in food)	200%	67%
cost × 4	300%	75%

Look closely at "cost × 2" — keystone pricing. People say "I double it, so I keep half," and at exactly that point the margin really is 50%. It's the one row where both words agree, which is a big part of why this confusion survives. One row up and it's already wrong.

Going the other way — if you start from the margin you want and work back to a price:

price = cost ÷ (1 − target margin)

Want a 60% margin on a $40 cost? 40 ÷ (1 − 0.6) = 40 ÷ 0.4 = $100.

The classic error is multiplying cost by 1.6 to "get 60%." That gives you $64 — a 37.5% margin. Off by nearly half.

If you'd rather not do this by hand, we built a free profit margin calculator that works in both directions and can factor in delivery-app and card fees. No signup, and your numbers never leave your browser.

One more thing: gross profit isn't take-home profit

Even with the margin calculated correctly, that money isn't in your pocket yet.

Margin only subtracts the direct cost of the thing you sold — the ingredients, the wholesale price, the materials. Still to come out: rent, power, wages, payroll taxes, platform fees, equipment, and your own time.

A business running a 60% gross margin finishing the year at 5% net is completely normal. So when you see "60% margin," don't celebrate — that's the number before anything gets deducted.

Delivery apps make this sharper. A 30–35% commission is standard, and it comes off the price, not off your margin. That $40-cost, $100-price example nets you $65–70 through an app — your profit drops from $60 to $25–30, and your margin from 60% to 38–43%. That's exactly why so many places price higher on delivery than in store.

So which one should you use?

Both — just for different jobs:

• Use markup when you're setting prices. You're looking at an invoice; "this cost me $40, what do I multiply by" is the natural way to think.
• Use margin when you're judging whether you're making money, or whether you can afford a discount. Margin shares a denominator with revenue, so it lines up directly against rent and labour — which you also track as a % of revenue.

There's really only one thing to avoid: taking a markup number into a margin decision. That 150% makes you feel like you have room. You have 60%.

One honest closing note: none of this math works unless somebody wrote the numbers down. Most owners can do the arithmetic fine — what they don't have is the energy, after closing, to reconcile the day and read the report. A simple formula doesn't help if the numbers never arrive.