Profit margin is a measure of profitability, calculated as profit expressed as a percentage of revenue (turnover).

In construction it is important not to confuse margin with markup. Markup is profit expressed as a percentage of cost, while margin is profit expressed as a percentage of the selling price. For example, if work costs £100,000 and is sold for £110,000, the markup is 10% but the margin is about 9.1%. Contractors typically track:

Margins in UK contracting are often thin, so accurate cost value reconciliation (CVR) and tight control of change are essential to protect them.

Related terms: profit, markup, overheads, cost value reconciliation.