Contribution Margin 2 (Marketing-Adjusted Margin) (CM2)

Mathematical Formula

What is CM2?

CM2 measures the profitability of your combined marketing efforts, showing whether your ad campaigns generate more value than they cost.

Where is CM2 Used?

Used by growth engineers and venture capital firms to identify if a product is self-financing or relies on outside capital to acquire users.

What Does It Mean & Strategic Value

A negative CM2 indicates that you are losing money on every customer you acquire via paid channels once impressions and click costs are figured in.

Down-Funnel Impact

If CM2 is positive, you can scale ad spend safely because every acquired customer immediately contributes margin to cover fixed salaries.

Real-World Usage & Auditing

Directs media buying scale limits and helps marketers adjust target ROAS targets dynamically.

Why CM2 Matters for Growth

The single best tool for finding out if you are paying too much for ads to artificially pump up top-line vanity metrics.

Operational Example Scenario

If your CM1 is $180, and you spent $80 on Facebook Ads to acquire that customer, your CM2 is ($180 - $80) = $100.