Leather, Footwear & Accessories Manufacturing worked example
Defect Rework Cost at 3.6% defect rate in the batch: a worked example
Suppose defect rate in the batch falls to 3.6%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate the total cost of reworking defective pairs or leather goods in a production batch. Combines the number of defective units, rework labor and material cost per unit, the rework rate, and fixed costs for inspection and containment.
The inputs for this scenario
- Production batch size: 1,000 pairs (held at the documented default)
- Rework cost per defective pair: 8 $ / pair (held at the documented default)
- Defect rate in the batch: 3.6 % (the input this scenario stresses; the baseline uses 5)
- Fixed inspection and containment cost: 150 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable rework cost = batch size x rework cost per pair x defect rate%.
- Total rework cost works out to 438 $ at these inputs, and this is the headline figure for the scenario.
- Rework cost per defective pair works out to 0.44 $ / piece at these inputs.
- Variable rework cost works out to 288 $ at these inputs.
- Fixed inspection and containment cost works out to 150 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where defect rate in the batch sits at 5% and the headline result is 550 $, this scenario comes in 20.36% below the baseline at 438 $.
- It computes the total cost of reworking defective pairs in a batch, combining variable per-pair rework with fixed inspection and containment cost. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.
Results at a glance
- Total rework cost: 438 $ (headline result)
- Rework cost per defective pair: 0.44 $ / piece
- Variable rework cost: 288 $
- Fixed inspection and containment cost: 150 $
Run it with your numbers
- To rerun this with your own numbers, open the live Defect Rework Cost calculator, set defect rate in the batch to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.