Margin math

How to find your minimum profitable price

Distinguish a cost-covering price from one that meets a chosen operating profit goal.

QuoteForProfit · Updated 2026-11-06 · US service-provider context

Worked example

With $80 fixed cost and a 4% quote-based fee, cost coverage is $80 ÷ 0.96 = $83.34. A 20% target margin needs $80 ÷ 0.76 = $105.27.

Find cost coverage

Divide fixed job cost by 1 minus quote-based percentage fees. This covers only the costs you entered, including your owner pay assumption.

Add a target margin

Divide fixed cost by 1 minus fee rate minus target margin. The denominator must remain above zero.

Check the practical quote

Round upward, then check the profit at that rounded price. If costs are missing, both the break-even and target prices will be too low.

When to use this method

Check cost coverage before deciding on a margin target. The gap between those amounts shows the operating profit you are asking the job to provide.

A mistake to avoid

A break-even quote only covers the costs you entered. Missing owner labor, overhead, tax obligations, or other cash needs are not fixed by the formula.

What this does not tell you

These are calculation examples using stated assumptions. They are not national service rates, local quotes, tax advice, or a prediction of demand. Confirm your own scope, costs, fee basis, and any local requirements before sending a price.

Source and updates

The formulas and assumptions are explained in our methodology. This guide was prepared on 2026-11-06. If you find an error, send a correction.

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