Returning Customer COGS Gross Rate: Repeat-Buyer Cost Ratio

Returning customer COGS as a share of their gross revenue—shows what percentage of repeat-buyer revenue goes to product costs.

Formula

Returning Customer COGS Gross Rate = ( Returning Customer COGS ÷ Returning Customer Gross Revenue ) × 100

Formula Components

Metric	Definition
Returning Customer COGS	Cost of goods sold for repeat buyer orders
Returning Customer Gross Revenue	Gross revenue from returning customers before discounts

Metadata
Type	Percentage
Data Source	Shopify, Upstack Costs
Aggregation	Ratio

Example

Your returning customers generated $68,400 in gross revenue with $24,680 in product costs:

Segment	COGS	Gross Revenue	COGS/Gross Rate
Returning Customers	$24,680	$68,400	36.1%
New Customers	$18,340	$47,200	38.9%

Returning customers have a lower COGS rate—they purchase higher-margin products without introductory bundles.

How It Works

This metric divides Returning Customer COGS by Returning Customer Gross Revenue. Lower percentages indicate better cost efficiency. Unlike margins which show what you keep, this rate shows what percentage goes directly to product costs.

When to Use

Scenario	Action
Segment cost analysis	Compare to new customer COGS rate for efficiency differences
Margin benchmarking	Track whether repeat buyers maintain cost efficiency over time
Product mix review	Identify if returning customers shift toward lower-cost products
Pricing validation	Confirm retention pricing preserves healthy cost ratios

Metric	Relationship
Returning Customer COGS	Numerator—product costs for repeat orders
Returning Customer Gross Revenue	Denominator—pre-discount revenue
COGS Gross Rate	All-customer comparison
New Customer COGS Gross Rate	First-time buyer comparison

See all COGS metrics →

NC COGS/Gross %COGS Net Rate

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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