Return Rate Cost Calculator

How it is calculated

The cost of one return is the value tied up in the unit plus the work of handling it: per return = unit cost + processing cost. The total is total = units returned × per return. The inputs are the number of returned units (a count, must be above zero), the cost per unit in money and the processing cost per return in money (reverse shipping, inspection, restocking labour, repackaging). Unit and processing cost may be zero but not negative. The tool shows the total, the cost per return and the unit count; it does not take a return rate or the number of units sold, so it measures the money lost, not how often returns happen. Amounts are shown in dollars.

Common mistakes

• Entering the selling price when you mean your cost, or the other way round. Decide whether you want the margin lost (use the cost of the item) or the revenue refunded (use the selling price) and stay consistent.
• Leaving out the processing cost because it feels small. Per return it looks minor, but it is multiplied by every returned unit and is often what separates a profitable product from a loss-making one.
• Entering the return rate percentage in the units box. The field expects a number of units, so convert first: 4 percent of 3,000 sold is 120 units.
• Counting an item that is resold at full price as a total loss. If part of the returned stock goes back on the shelf, lower the unit cost to the expected write-down, not the full cost.
• Forgetting that outbound shipping paid on the original order is usually not recovered and is not in this formula unless you add it to the processing cost.