80% Markup to Margin: a 80% markup is a 44.4% margin
At 80% markup the selling price is cost × (1 + 80/100), and the margin, the share of the price that is profit, is 44.4%. Everything below is derived from that one line.
Check any cost at 80% markup
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The formula
80 ÷ 180 × 100 = 44.4%
A 80% markup can never be a 80% margin because you would need the profit to equal 80% of a price that already contains the profit. On a $12.50 cost the price is $22.50; the $10.00 of profit is 44.4% of that, and no amount of rounding closes the gap.
Price table at 80% markup
Every row adds 80% to the cost. The margin column is the same on every line, 44.4%, because margin depends only on the percentage, not on the amount.
| Cost | Price at 80% markup | Gross profit | Margin |
|---|---|---|---|
| $5.00 | $9.00 | $4.00 | 44.4% |
| $10.00 | $18.00 | $8.00 | 44.4% |
| $25.00 | $45.00 | $20.00 | 44.4% |
| $50.00 | $90.00 | $40.00 | 44.4% |
| $100.00 | $180.00 | $80.00 | 44.4% |
| $250.00 | $450.00 | $200.00 | 44.4% |
| $500.00 | $900.00 | $400.00 | 44.4% |
| $1,000.00 | $1,800.00 | $800.00 | 44.4% |
| $2,500.00 | $4,500.00 | $2,000.00 | 44.4% |
| $10,000.00 | $18,000.00 | $8,000.00 | 44.4% |
Markups near 80%
From 70% to 90% markup the margin moves from 41.2% to 47.4%: each two-point step in markup is worth less than two points of margin at this level, and the gap widens as the markup grows. The multiplier column is what you type into a spreadsheet to price a cost list.
Worked example
Worked example. A product costs $12.50. Add 80%: $12.50 × 1.8 = $22.50. The gross profit is $22.50 − $12.50 = $10.00. As a share of cost that is 80% (the markup); as a share of price it is $10.00 ÷ $22.50 = 44.4% (the margin).
Why the two percentages differ
When you compare suppliers, make sure both quote the same measure. One quoting 80% markup and another quoting 44.4% margin are offering the identical deal; one quoting 80% margin is offering a much richer one.
When to use markup, when to use margin
A 80% markup is typical for categories where the seller adds little beyond stocking and handling: it leaves 44.4% of each sale to cover overheads. Categories with high service content usually need a higher markup to reach a margin that pays for the time involved.
Do not confuse this with the 80% margin page. To keep 80% of the price you need a 400% markup; the 80% markup on this page keeps only 44.4%.
See the mirror page: what markup gives a 80% margin.