Markup vs. Margin: The Calculation That Trips Up Every New Business Owner
Markup and margin are both ways of expressing the difference between cost and price. They're calculated differently, and mixing them up leads to systematic under-pricing.
The Definitions
Markup = (Price - Cost) ÷ Cost
A $100 item bought at $60: markup = ($100 - $60) ÷ $60 = 66.7%
Margin = (Price - Cost) ÷ Price
Same item: margin = ($100 - $60) ÷ $100 = 40%
Same $40 profit. Two different percentages. The confusion happens when someone says "I want a 50% margin" but calculates it as markup — and ends up with a 33% margin instead.
The Mistake
You buy something for $50. You want a 50% margin. You add 50% markup: $50 × 1.5 = $75.
Margin check: ($75 - $50) ÷ $75 = 33% margin — not 50%.
To achieve a 50% margin, the formula is:
Price = Cost ÷ (1 - margin %)
$50 ÷ (1 - 0.5) = $50 ÷ 0.5 = $100
Which to Use When
Margin is standard in retail and most business contexts. When someone asks "what's your margin on that?", they expect a margin calculation, not markup.
Markup is common in manufacturing and wholesale, where pricing starts from cost-plus.
If your target is a specific gross margin (which most financial models use), work with margin — not markup.
Keystone Pricing
"Keystone markup" in retail means doubling the wholesale price (100% markup = 50% margin). It's a quick rule of thumb, not a careful pricing strategy — but it's widely used in product retail because it covers typical retail overhead at scale.
[Calculate markup and margin →](https://doesitaddup.com)
Frequently Asked Questions
I want a 50% margin but I'm using markup. What price should I actually set?
Use the formula: Price = Cost ÷ (1 - margin %). If your cost is $50 and you want 50% margin, calculate $50 ÷ (1 - 0.5) = $100. If you mistakenly add 50% markup instead ($50 × 1.5 = $75), you'll only achieve a 33% margin, leaving money on the table.
When should I use markup vs. margin for pricing?
Use margin if you're in retail or setting pricing based on financial targets—most business models track gross margin, not markup. Use markup if you're in manufacturing or wholesale and pricing by adding a percentage to your cost. When anyone asks about your "margin," they mean the margin formula, not markup.
What is keystone pricing and should I use it?
Keystone pricing means doubling the wholesale cost, which creates a 100% markup but only a 50% margin. It's a quick rule of thumb widely used in retail because it typically covers overhead costs at scale, but it's not a substitute for calculating your actual target margin based on your business expenses.
Why do markup and margin give different percentages for the same profit?
Markup divides profit by cost, while margin divides profit by price—the denominator is different. A $40 profit on a $60 cost is 66.7% markup, but the same $40 profit on a $100 price is only 40% margin. This is why confusing the two formulas leads to systematic underpricing.
This article is for informational purposes only. See our disclaimer.