Returns Cost Calculator accuracy and testing

Formula source

• Return volume = orders * return rate. Total cost = return volume * (return shipping + processing + restock loss) + return volume * refund loss per return.

Test cases

Known limitations

• This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
• Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

• All rates, fees, costs, order values, demand volumes, and policy targets are user-entered assumptions.
• The calculator uses transparent deterministic formulas and does not fetch live carrier, marketplace, warehouse, tax, or provider rates.
• Results are planning estimates and should be checked against your carrier terms, marketplace fees, inventory system, and accounting policy.
• Inputs are processed locally in your browser.

Unit handling

• Orders accepts numeric values.
• Return Rate accepts values in %.
• Return Shipping Cost accepts values in $/return.
• Processing Cost accepts values in $/return.
• Restock Loss accepts values in $/return.
• Refund Loss accepts values in $/return.
• Total Returns Cost is displayed as currency.
• Returns Cost per Order is displayed as currency.
• Total Refund Loss is displayed as currency.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.
• Currency outputs are displayed with standard US dollar formatting.
• Input precision follows configured step values where provided.

Version history

Change log