Opex: Operating Expenses

Opex tracks user-defined operating expenses from order cost entries. These costs are deducted from CM3 to calculate CM4.

Formula

Opex = SUM ( Order Cost Entries ) WHERE category = Operating Expenses

Formula Components

Metric	Definition
Order Cost Entries	User-defined costs configured in Upstack Cost Settings
category = Operating Expenses	Filters to costs categorized as opex

Metadata
Type	Currency
Data Source	Upstack Costs
Aggregation	Sum

Example

Your Shopify store has $25,000 in operating expenses allocated across 500 orders.

Metric	Value	Calculation
Total Orders	500	All orders in period
Opex	$25,000	Sum of opex cost entries
Opex Per Order	$50.00	$25,000 ÷ 500

Operating expenses include overhead costs like rent, salaries, software subscriptions, and other fixed business costs.

How It Works

Opex is pulled from cost entries you configure in Upstack Cost Settings. Fixed monthly costs are allocated across orders in the period. These costs are deducted after CM3 to calculate CM4, giving you a complete view of business profitability.

When to Use

Scenario	Action
Complete profitability analysis	Include opex in contribution margin
Break-even analysis	Understand minimum revenue needed to cover opex
Scaling decisions	Model how opex changes with volume
Cost allocation	Track opex impact per order

Metric	Relationship
NC Opex	Operating expenses for new customer orders
RC Opex	Operating expenses for returning customer orders
Agency Fees	Agency costs, also deducted for CM4
Total Cost	All costs combined

See all Contribution Margin metrics →

⌘I

​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics