OEE & Factory Performance worked example

Quality Rate Calculator at 71% target quality rate: a worked example

This worked example runs the quality rate calculator numbers for a tougher week than the baseline: 71% target quality rate instead of the typical 99%. Calculate quality rate for OEE & Factory Performance: good units as a share of total units produced.

The inputs for this scenario

  • Good units: 970 units (held at the documented default)
  • Total units produced: 1,000 units (held at the documented default)
  • Target quality rate: 71 % (the input this scenario stresses; the baseline uses 99)

Working through the calculation

  • The calculation starts from the formula this tool documents: Quality rate = good units ÷ total units produced × 100.
  • Quality rate works out to 97 % at these inputs, and this is the headline figure for the scenario.
  • Gap to target works out to -26 points at these inputs.
  • Good units works out to 970 count at these inputs.
  • Total units produced works out to 1,000 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target quality rate sits at 99% and the headline result is 97 %, this scenario lands almost exactly on the baseline at 97 %.
  • Use it after a run or shift to quantify first-pass yield and see how far short of your quality target the line is performing. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Quality rate: 97 % (headline result)
  • Gap to target: -26 points
  • Good units: 970 count
  • Total units produced: 1,000 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Quality Rate Calculator calculator, set target quality rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.