Margins, break-even & unit economics · Working

Contribution margin ratio

Also called: CMR

ELI5

Contribution margin divided by revenue.

Used in conversation

“The number is useful only if everyone calculates contribution margin ratio the same way.”

Pitch context

You will see “Contribution margin ratio” in financial models, budgets, board packs and investor materials when the discussion reaches margins, break-even & unit economics.

Why it matters: In margins, break-even & unit economics, different calculation boundaries, periods or accounting treatments can change the number and the decision.

Caution

Calculation, recognition and disclosure can vary by accounting framework, company policy and reporting context.

Sources & evidence · 4

Direct term-level sources and supporting source families.

U.S. Small Business Administration — Break-even pointDirect source · primary · checked 2026-08-16
IFRS Foundation — IFRS GlossaryDirect source · primary · checked 2026-08-16
Financial Accounting Standards Board — FASB Accounting Standards CodificationSupporting source family · primary · checked 2026-08-16
U.S. Securities and Exchange Commission — Non-GAAP Financial Measures — Compliance and Disclosure InterpretationsSupporting source family · primary · checked 2026-08-16