Contribution Margin %: Percent of Revenue as Profit

Percentage of net revenue remaining as contribution margin (CM3) after all variable costs.

Formula

Contribution Margin % = ( Contribution Margin ÷ Net Revenue ) × 100

Formula Components

Metric	Definition
Contribution Margin	Profit after COGS, fulfillment, transaction, marketing, and ad spend
Net Revenue	Revenue after discounts and refunds

Metadata
Type	Percentage
Data Source	Shopify, Upstack Costs
Aggregation	Ratio

Example

Your store generated $125,000 in net revenue with a 22.4% contribution margin in March:

Month	Net Revenue	Contribution Margin	CM %
January	$98,500	$19,700	20.0%
February	$112,300	$24,706	22.0%
March	$125,000	$28,000	22.4%

How It Works

Contribution Margin % expresses Contribution Margin as a percentage of net revenue. It shows how much of each revenue dollar becomes profit after all variable costs—COGS, fulfillment, transaction fees, marketing costs, and ad spend. This percentage is your true marketing profitability rate.

When to Use

Scenario	Action
Benchmark profitability	Compare CM % across periods to track margin trends
Evaluate marketing efficiency	Higher CM % means more profit per marketing dollar
Set pricing strategy	Ensure prices support target contribution margins
Compare channels	Identify which channels deliver the best margin

Metric	Relationship
Contribution Margin	The dollar amount (this metric’s numerator)
Net Revenue	The denominator for this calculation
Total Cost %	Inverse view—what percentage goes to costs
Marketing Cost %	Marketing spend as percentage of revenue

See all Contribution Margin metrics →

Contribution Margin (CM3)Marketing Cost

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​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics