CM4 (Operating Profit): Profit After All Costs

Track CM4 Operating Profit for your Shopify store. Calculate true operating profit after all costs including OPEX.

CM4 (Operating Profit) measures your true operating profit after deducting all costs—COGS, fulfillment, marketing, agency fees, and operating expenses.

Formula

CM4 = CM3 − Agency Fees − OPEX − Other Costs

Formula Components

Metric	Definition
CM3 (Contribution Margin)	Profit after marketing and ad spend
Agency Fees	Fees paid to marketing agencies
OPEX	Operating expenses (salaries, rent, software)
Other Costs	Additional fixed or semi-fixed costs

Metadata
Type	Currency
Data Source	Shopify, Upstack Costs
Aggregation	Sum

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Example

Your Shopify store has $42,500 CM3, with $5,000 in agency fees, $15,000 OPEX, and $2,500 other costs.

Component	Amount	Calculation
CM3	$42,500	After marketing
Agency Fees	$5,000	Marketing agency
OPEX	$15,000	Operating expenses
Other Costs	$2,500	Miscellaneous
CM4	$20,000	$42,500 − $22,500

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How It Works

CM4 is your final contribution margin level—what remains after all variable and fixed costs. It represents true operating profit that can be reinvested in growth or distributed. Configure agency fees, OPEX, and other costs in Cost Settings.

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When to Use

Scenario	Action
Measuring true profitability	Use CM4 to see actual operating profit
Planning reinvestment	Know available profit for growth initiatives
Evaluating business health	Track CM4 trends to ensure sustainable profitability
Setting profit targets	Use CM4 as the ultimate profitability goal

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Related Metrics

Metric	Relationship
CM3 (Contribution Margin)	Input margin before agency/OPEX
CM4 %	CM4 as a percentage of net revenue
CM4 ROAS	Operating profit per ad dollar

See all Contribution Margin metrics →