CMMS, EAM & Spare Parts Management worked example

Stockout Downtime Exposure at 43% stockout scenarios likely to affect production: a worked example

Suppose stockout scenarios likely to affect production falls to 43%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate financial exposure when a spare part stockout causes equipment downtime, expedited sourcing, or delayed repair.

The inputs for this scenario

  • Expected downtime hours from stockouts: 34 downtime hr (held at the documented default)
  • Downtime cost per hour: 12,500 $ / hr (held at the documented default)
  • Stockout scenarios likely to affect production: 43 % (the input this scenario stresses; the baseline uses 60)
  • Fixed expedite, freight, and recovery cost: 18,000 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable stockout downtime exposure = expected downtime hours from stockouts × downtime cost per hour × stockout scenarios likely to affect production.
  • Total stockout downtime exposure works out to 200,750 $ at these inputs, and this is the headline figure for the scenario.
  • downtime cost per hour works out to 5,904 $ / piece at these inputs.
  • Variable stockout downtime exposure works out to 182,750 $ at these inputs.
  • fixed expedite, freight, and recovery cost works out to 18,000 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where stockout scenarios likely to affect production sits at 60% and the headline result is 273,000 $, this scenario comes in 26.47% below the baseline at 200,750 $.
  • It computes the expected annual cost exposure from spare parts stockouts as downtime hours times the hourly downtime cost times the probability of production impact, plus fixed expedite and recovery costs. 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

  • Total stockout downtime exposure: 200,750 $ (headline result)
  • downtime cost per hour: 5,904 $ / piece
  • Variable stockout downtime exposure: 182,750 $
  • fixed expedite, freight, and recovery cost: 18,000 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Stockout Downtime Exposure calculator, set stockout scenarios likely to affect production to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.