S&OP, Demand Planning & Forecasting worked example

MPS Stability Rate at 68% target mps stability rate: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop target mps stability rate to 68%, then walk the calculation through step by step. Estimate mps stability rate for sandop, demand planning and forecasting using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Frozen-window MPS line items changed: 8 count (held at the documented default)
  • Total MPS line items in frozen window: 250 count (held at the documented default)
  • Target MPS stability rate: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Mps stability rate = mps stability rate count ÷ total mps stability rate population × 100.
  • Mps stability rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Mps stability rate gap to target works out to 64.8 points at these inputs.
  • Mps stability rate count works out to 8 count at these inputs.
  • Total mps stability rate population works out to 250 count at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target mps stability rate sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to target mps stability rate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. The raw count of 'changes' is only as good as your change-tracking discipline — un-logged manual overrides or reschedules make the rate look artificially high.

Results at a glance

  • Mps stability rate: 3.2 % (headline result)
  • Mps stability rate gap to target: 64.8 points
  • Mps stability rate count: 8 count
  • Total mps stability rate population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live MPS Stability Rate calculator, set target mps stability rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.