Musical Instruments & Acoustic Products worked example
Defect Rework Rate at 5.75% target rework rate: a worked example
This scenario runs the defect rework rate calculation on the strong side: 5.75% target rework rate, with every other input held at its documented default. Use it after a finishing, assembly, or QC pass when you need a clean rework rate plus gap to target for the daily quality huddle.
The inputs for this scenario
- Instruments sent to rework: 8 instruments (unchanged)
- Instruments inspected: 250 instruments (unchanged)
- Target rework rate: 5.75 % (raised for this scenario; the documented default is 5)
Working through the calculation
- Applying the documented formula (Defect rework rate = instruments sent to rework ÷ instruments inspected × 100) to the inputs above produces each figure below.
- At this operating point the engine returns 3.2 % for defect rework rate, the number this scenario is built around.
- At this operating point the engine returns 2.55 points for rework rate gap to target.
- At this operating point the engine returns 8 count for instruments sent to rework.
- At this operating point the engine returns 250 count for instruments inspected.
How this compares with the baseline
- Against the tool's baseline example, where target rework rate sits at 5% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
- Use it for daily or weekly quality reporting, line audits, and tracking the impact of a process change. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.
Results at a glance
- Defect rework rate: 3.2 % (headline result)
- Rework rate gap to target: 2.55 points
- Instruments sent to rework: 8 count
- Instruments inspected: 250 count
Run it with your numbers
- Every input above is editable in the live Defect Rework Rate calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.