WooCommerce Margin Estimator

The WooCommerce Margin Estimator calculates contribution profit and contribution margin for one sale after product, transaction, and fulfillment costs. It helps merchants evaluate whether a listed price provides enough room to cover overhead, marketing, and profit.

Unlike a simple markup calculation, margin uses selling price as the denominator. This makes it easier to compare products with different prices and cost structures on a consistent percentage basis.

Store inputs

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Result
Contribution margin
Contribution profit
Total variable cost
Cost share

1. Set the reporting scope
Enter the customer-facing selling price before any optional tax treatment.

2. Enter the primary value
Enter the direct product or acquisition cost for one unit.

3. Add supporting inputs
Add payment, marketplace, or WooCommerce-related variable fees per sale.

4. Review the result
Enter picking, packaging, and fulfillment cost attributable to one order or unit.

5. Compare and act
Review contribution profit and margin before fixed overhead and advertising.

Contribution Profit = Selling Price − Product Cost − Fees − Fulfillment Cost

Contribution Margin (%) = Contribution Profit ÷ Selling Price × 100

Where:

  • Selling Price = revenue collected for one sale
  • Product Cost = direct cost of the item
  • Fees = variable transaction and platform costs
  • Fulfillment Cost = packing and delivery-related variable cost

The calculator uses the entered values directly and rounds only for display.

What the result means

Use the result as a planning estimate and compare it with consistent historical data.

Actual WooCommerce reports may differ because of tax settings, refunds, fees, timing, and data definitions.

Given:
- Selling price: $95
- Product cost: $38
- Fees: $5
- Fulfillment: $9

Calculation:
$95 − $38 − $5 − $9 = $43
$43 ÷ $95 × 100 = 45.26%

Result: The sale contributes $43, or 45.26% of its selling price, before fixed costs and marketing.

Is contribution margin the same as net profit margin?

No. Contribution margin excludes fixed overhead, taxes, and many business-level expenses.

Should advertising cost be included?

Include a per-order acquisition cost when evaluating fully loaded unit economics. Otherwise analyze advertising separately.

What happens if costs exceed price?

The contribution profit and margin become negative, showing that each sale loses money before fixed costs.

How should percentage-based payment fees be entered?

Convert the percentage plus any fixed charge into a dollar amount for the specific selling price.

How is margin different from markup?

Margin divides profit by selling price. Markup divides profit by cost, so the percentages are not interchangeable.