ERP & MRP Planning worked example

Production Schedule Capacity at 63% expected work-center uptime: a worked example

Suppose expected work-center uptime falls to 63%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate good production output from scheduled cycles, units per cycle, uptime, and first-pass yield.

The inputs for this scenario

  • Good units per production cycle: 120 units / cycle (held at the documented default)
  • Scheduled production cycles: 42 cycles (held at the documented default)
  • Expected work-center uptime: 63 % (the input this scenario stresses; the baseline uses 88)
  • Expected first-pass yield: 96 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross scheduled capacity = good units per cycle × scheduled production cycles.
  • Good scheduled production capacity works out to 3,048 units at these inputs, and this is the headline figure for the scenario.
  • Gross scheduled production capacity works out to 5,040 units at these inputs.
  • Units lost to planned downtime and availability works out to 1,865 units at these inputs.
  • Units lost to expected scrap or rework works out to 127 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected work-center uptime sits at 88% and the headline result is 4,258 units, this scenario comes in 28.41% below the baseline at 3,048 units.
  • It derates gross scheduled capacity by expected uptime and expected first-pass yield to give the good-unit output you can realistically commit. 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

  • Good scheduled production capacity: 3,048 units (headline result)
  • Gross scheduled production capacity: 5,040 units
  • Units lost to planned downtime and availability: 1,865 units
  • Units lost to expected scrap or rework: 127 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Production Schedule Capacity calculator, set expected work-center uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.