ERP & MRP Planning worked example

Schedule Attainment at 68% target schedule attainment: a worked example in erp & mrp planning

Suppose target schedule attainment falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate the share of scheduled orders or units completed as planned.

The inputs for this scenario

  • Scheduled units completed on time: 1,840 units (held at the documented default)
  • Total scheduled units: 2,000 units (held at the documented default)
  • Target schedule attainment: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Schedule attainment = scheduled units completed on time ÷ total scheduled units × 100.
  • Schedule attainment works out to 92 % at these inputs, and this is the headline figure for the scenario.
  • Schedule attainment gap to target works out to -24 points at these inputs.
  • Scheduled units completed on time works out to 1,840 units at these inputs.
  • Total scheduled units works out to 2,000 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target schedule attainment sits at 95% and the headline result is 92 %, this scenario lands almost exactly on the baseline at 92 %.
  • It computes the percentage of scheduled units finished on time against the total units the schedule called for, plus the point gap to your attainment target. 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

  • Schedule attainment: 92 % (headline result)
  • Schedule attainment gap to target: -24 points
  • Scheduled units completed on time: 1,840 units
  • Total scheduled units: 2,000 units

Run it with your numbers

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

Last reviewed 2026-05-12.