Manufacturing Cost Accounting & Finance worked example

Rework Accounting Cost at 65% share of units expected to clear rework: a worked example

Suppose share of units expected to clear rework falls to 65%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimates the added cost of returning nonconforming parts to specification.

The inputs for this scenario

  • Units routed for rework: 600 units (held at the documented default)
  • Rework labor and material cost per unit: 9.5 $ / unit (held at the documented default)
  • Share of units expected to clear rework: 65 % (the input this scenario stresses; the baseline uses 90)
  • Setup, teardown and re-inspection charge: 450 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Rework cost = reworked units x rework cost per unit x completion rate% + setup charge.
  • Total rework accounting cost works out to 4,155 $ at these inputs, and this is the headline figure for the scenario.
  • Rework accounting cost per unit works out to 6.93 $ / piece at these inputs.
  • Variable rework accounting cost works out to 3,705 $ at these inputs.
  • Fixed rework accounting cost adder works out to 450 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where share of units expected to clear rework sits at 90% and the headline result is 5,580 $, this scenario comes in 25.54% below the baseline at 4,155 $.
  • It computes the fully loaded cost of reworking a batch of nonconforming units, broken into a variable per-unit portion scaled by completion rate plus a fixed setup adder. 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 accounting cost: 4,155 $ (headline result)
  • Rework accounting cost per unit: 6.93 $ / piece
  • Variable rework accounting cost: 3,705 $
  • Fixed rework accounting cost adder: 450 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Rework Accounting Cost calculator, set share of units expected to clear rework to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.