How to use this calculator
Enter one currency, monthly volume, unit costs, and estimated return incidence.
Formula and method
Cost/order = items/order × pick/item + pack/order + ship/order + storage/month ÷ orders/month + return rate × return cost.
Worked example
At defaults, cost/order is 9.9 USD and monthly total is 9,900 USD.
Assumptions and supported scope
User-entered costs only; no carrier or provider prices. All costs should cover the same month.
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