New Customer CM2 MER: First-Order Variable Margin Efficiency

New Customer CM2 MER measures how much variable margin (after COGS and fulfillment) you generate from first orders per dollar of ad spend.

Formula

New Customer CM2 MER = New Customer CM2 ÷ Ad Spend

Formula Components

Metric	Definition
New Customer CM2	Variable margin from first-time buyer orders
Ad Spend	Total advertising spend

Metadata
Type	Ratio
Data Source	Shopify, Advertising Platforms
Aggregation	Ratio

Example

Your Shopify store generates $22,000 CM2 from new customers and spends $15,000 on ads.

Component	Value	Calculation
New Customer CM2	$22,000	First-order variable margin
Ad Spend	$15,000	Marketing cost
New Customer CM2 MER	1.47	$22,000 ÷ $15,000

How It Works

New Customer CM2 MER shows variable margin efficiency after accounting for both COGS and fulfillment costs. This is more realistic than CM1 MER for evaluating acquisition economics because it includes shipping and handling.

Benchmarks

Rating	Range
Excellent	> 2.0
Good	1.2 – 2.0
Moderate	0.8 – 1.2
Unprofitable	< 0.8

A value below 1.0 means fulfillment-adjusted margin doesn’t cover ad spend.

Metric	Relationship
New Customer CM2	Numerator (variable margin)
CM2 MER	Overall CM2 efficiency
New Customer CM3 MER	After transaction costs

See all Performance metrics →

​Formula

​Formula Components

​Example

​How It Works

​Benchmarks

​Related Metrics

Formula

Formula Components

Example

How It Works

Benchmarks

Related Metrics