Contribution Margin Ratio Meaning

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The contribution margin ratio is contribution margin divided by sales revenue. It expresses the share of each sales amount available to cover fixed costs and profit under the stated cost model.

Example

Sales of 25,000 less variable costs of 15,000 give contribution of 10,000. The contribution margin ratio is 10,000 ÷ 25,000 = 40%.

Formula and assumptions

Contribution margin ratio = contribution margin ÷ sales revenue

Remember the difference

For several products, the overall ratio depends on sales mix. Do not apply one product’s ratio to a different mix without checking the assumptions.

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Published 4 November 2026. Prepared with AI assistance; examples are fictional and simplified for learning.

Examples are simplified for learning. Where a term depends on US law, IFRS, US GAAP or a historical rule, check the context explained above and the requirements relevant to your course.

Study references: OpenStax financial accounting and managerial accounting. For reporting requirements, consult the applicable IFRS Standards or FASB guidance. US tax terms should be checked against the relevant tax-year IRS instructions.

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