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Returning Customer CM1 measures the gross margin from repeat buyers—net revenue minus COGS for returning customer orders only.

Formula

RC CM1 = RC Net RevenueRC Total COGS

Formula Components

MetricDefinition
RC Net RevenueNet revenue from returning customer orders
RC Total COGSCost of goods sold for returning customer orders
customer_type = returning_customerFilters to repeat buyers
Metadata
TypeCurrency
Data SourceShopify, Upstack Costs
AggregationSum

Example

Returning customers generated $75,000 net revenue with $27,000 in COGS.
ComponentAmountCalculation
RC Net Revenue$75,000Repeat buyer revenue
RC COGS$27,000Product costs
RC CM1$48,000$75,000 − $27,000

How It Works

RC CM1 isolates the gross margin from returning customers—orders placed by customers who have purchased before. This margin comes without additional acquisition cost, making it a key indicator of retention profitability.

When to Use

ScenarioAction
Measuring retention valueTrack RC CM1 as zero-acquisition profit
Comparing customer segmentsBenchmark RC CM1 against NC CM1
Evaluating loyalty programsMeasure margin impact of retention initiatives
LTV planningUse RC CM1 to project lifetime value

MetricRelationship
RC CM1 %RC CM1 as a percentage of RC net revenue
NC CM1Gross margin from new customers
Returning CustomersCount of repeat buyers
See all Contribution Margin metrics →