Profit Margin Calculator

What it measures

Understanding Profit Margin

Profit margin shows how much of each revenue dollar remains after the costs included in your calculation. A 35% margin means $0.35 remains from every $1.00 of revenue before any costs you chose to exclude. That final distinction matters: gross margin usually subtracts cost of goods sold, while operating and net margins include progressively more expenses. Define the cost scope before comparing results. Margin is especially useful for pricing, product mix, and trend analysis because it scales results relative to revenue. A product can produce more profit dollars but still have a weaker margin than another product. Track both measures when capacity is constrained. If costs exceed revenue, the calculator returns a negative margin, which signals a loss. Margin can improve through higher prices, lower unit costs, lower fulfillment expense, or a shift toward more profitable products. Avoid confusing margin with markup: margin divides profit by revenue, whereas markup divides profit by cost, so the percentages are not interchangeable.