Example comparison: 1,000 cost units
At 10% markup, price is 1,100 and gross margin is 9.09%. At 20% markup, price is 1,200 and gross margin is 16.67%. At 25% markup, price is 1,250 and gross margin is 20.00%. These conversions compare arithmetic only; they do not recommend a price or establish net profitability.
Write down the cost basis first
Decide which items the calculation calls cost: materials, labour, equipment, delivery and any included overhead. The numerical margin means little unless that basis is consistent. If a major cost is omitted, the resulting percentage may look attractive while the estimate is incomplete.
The calculator applies markup to the direct-cost amount you enter. It does not automatically discover your business expenses or tell you a commercially suitable percentage. Use it to explain your chosen pricing arithmetic, not as evidence of a guaranteed profit.
Markup is measured against cost
If cost is C and markup is m as a decimal, selling price is C × (1 + m). The price increase is C × m. Dividing that increase by the original cost returns the markup percentage.
With a cost of 1,000 abstract units and a 20% markup, the increase is 200 and the selling price is 1,200. This price is before any separately treated items outside that calculation. The example uses no real supplier rate or currency assumption.
Margin is measured against selling price
Using the same numbers, gross margin is (1,200 − 1,000) ÷ 1,200 = 16.6667%. The denominator changed. To target a stated gross margin g on that exact cost basis, solve price = C ÷ (1 − g), rather than multiplying cost by 1 + g.
For a 20% gross-margin scenario, 1,000 ÷ 0.8 = 1,250. The price increase is 250, which is a 25% markup. Enter 25 in the markup tool to reproduce this example. A margin target must be below 100% for a positive finite price when cost is positive.
Separate the other pricing layers
Material allowances change quantities; contingency records chosen uncertainty; markup changes the customer price relative to a cost basis. Keep them labelled instead of calling every percentage profit. A gross margin is not the same as net profit after all expenses.
Tax and pass-through amounts may have their own treatment. Verify the applicable rules and quote scope independently; this arithmetic guide sets no jurisdictional tax rate. Keep rounding to the quote's monetary precision at the end and retain the unrounded calculation for reconciliation.
Do it in order
- Establish a complete and consistently defined cost basis.
- Choose whether the required percentage is markup on cost or gross margin on selling price.
- Apply the matching formula and state the percentage basis on the estimate.
| Markup | Price from 1,000 cost | Gross margin |
|---|---|---|
| 10% | 1,100 | 9.09% |
| 20% | 1,200 | 16.67% |
| 25% | 1,250 | 20.00% |
Planning boundary
This guide explains pricing arithmetic and does not prescribe a profitable rate, accounting policy or tax treatment.
How do I calculate a 20% gross margin with the markup tool?
For that mathematical target on a consistent cost basis, use 25% markup. Cost ÷ 0.8 and cost × 1.25 produce the same selling price.
Does gross margin equal the business's net profit?
No. The relationship depends on the defined cost basis, and other expenses may still need to be deducted.