OEE & Factory Performance worked example
Scrap Impact on OEE at 2.3% target scrap rate: a worked example
What does the result look like when target scrap rate reaches 2.3%? The full calculation is worked below with real intermediate numbers. Use it to track scrap rate against target in OEE & Factory Performance.
The inputs for this scenario
- Scrap units: 30 units (unchanged)
- Total units produced: 1,000 units (unchanged)
- Target scrap rate: 2.3 % (raised for this scenario; the documented default is 2)
Working through the calculation
- Applying the documented formula (Scrap rate = scrap units ÷ total units produced × 100) to the inputs above produces each figure below.
- At this operating point the engine returns 3 % for scrap rate, the number this scenario is built around.
- At this operating point the engine returns -0.7 points for gap to target.
- At this operating point the engine returns 30 count for scrap units.
- At this operating point the engine returns 1,000 count for total units produced.
How this compares with the baseline
- Against the tool's baseline example, where target scrap rate sits at 2% and the headline result is 3 %, this scenario lands almost exactly on the baseline at 3 %.
- A figure at this level is achievable when target scrap rate is genuinely sustained, not just peaked for a shift. Scrap rate alone doesn't distinguish a few catastrophic defects from many minor ones, and it excludes rework — parts that were salvaged still consumed time and may belong in a separate yield analysis.
Results at a glance
- Scrap rate: 3 % (headline result)
- Gap to target: -0.7 points
- Scrap units: 30 count
- Total units produced: 1,000 count
Run it with your numbers
- Every input above is editable in the live Scrap Impact on OEE calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.