Contribution Margin

The Contribution Margin (CM) is a business term that describes how much a product or service contributes to covering fixed costs and ultimately to a company's profit. It is calculated as the difference between the generated revenues and the variable costs directly associated with the production or provision of the product or service.

Contribution Margin Formula:

Contribution Margin = Revenues − Variable Costs

• Revenues: This is the sales revenue or proceeds generated from the sale of the product.
• Variable Costs: These are the costs directly related to the production or sale of the product, e.g., material costs or production costs, that are incurred for each additional unit produced.

Illustrative Example

Suppose a company sells a product for 100 Euros. The variable costs (e.g., material and labor costs) for this product amount to 60 Euros. The contribution margin would then be:

Contribution Margin = €100 − €60 = €40

Significance of the Contribution Margin

The contribution margin shows how much a product contributes to covering fixed costs and generating a profit. Companies use the contribution margin to decide whether the production of a product is economically viable. If the contribution margin is positive, the product contributes to covering fixed costs. A negative contribution margin, however, means that the product does not cover its costs and may jeopardize the company's profitability.

In cost accounting, the total contribution margin is often calculated by adding the contribution margins of all a company's products. This amount indicates whether fixed costs are covered overall and how much profit is ultimately generated.