Production worked example

Schedule Attainment with planned units of 1,200 units: a worked example in production

This worked example runs the schedule attainment numbers for a tougher week than the baseline: planned units of 1,200 units instead of the typical 2,400 units. Compare planned output against actual output and estimate the schedule miss from lost time.

The inputs for this scenario

  • Planned units: 1,200 units (the input this scenario stresses; the baseline uses 2,400)
  • Actual units: 2,110 units (held at the documented default)
  • Lost production time: 2.4 hr (held at the documented default)
  • Standard output rate: 130 units / hr (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Schedule attainment = actual units รท planned units.
  • Schedule attainment works out to 100 % at these inputs, and this is the headline figure for the scenario.
  • Output gap works out to 0 units at these inputs.
  • Lost capacity works out to 312 units at these inputs.
  • Adjusted attainment works out to 126 % at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where planned units sits at 2,400 units and the headline result is 87.92 %, this scenario comes in 13.74% above the baseline at 100 %.
  • Use it at end of shift or end of day to score plan performance and separate downtime losses from underlying planning gaps. 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

  • Schedule attainment: 100 % (headline result)
  • Output gap: 0 units
  • Lost capacity: 312 units
  • Adjusted attainment: 126 %

Run it with your numbers

  • To rerun this with your own numbers, open the live Schedule Attainment calculator, set planned units to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.