Supplier Quality, Development & Audits worked example

Supplier Escape Cost at 81% containment effectiveness: a worked example in supplier quality, development & audits

What does the result look like when containment effectiveness reaches 81%? The full calculation is worked below with real intermediate numbers. A quality manager uses it to quantify the cost of a supplier escape when scoping a chargeback or supplier corrective action.

The inputs for this scenario

  • Escaped defective parts: 500 parts (unchanged)
  • Cost per escape event: 45 $/part (unchanged)
  • Containment effectiveness: 81 % (raised for this scenario; the documented default is 70)
  • Investigation and 8D adder: 3,500 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Total escape cost = escaped parts x cost per escape x containment% + investigation adder) to the inputs above produces each figure below.
  • At this operating point the engine returns 21,725 $ for total supplier escape cost, the number this scenario is built around.
  • At this operating point the engine returns 43.45 $ / piece for supplier escape cost per unit.
  • At this operating point the engine returns 18,225 $ for variable supplier escape cost.
  • At this operating point the engine returns 3,500 $ for fixed supplier escape cost adder.

How this compares with the baseline

  • Against the tool's baseline example, where containment effectiveness sits at 70% and the headline result is 19,250 $, this scenario comes in 12.86% above the baseline at 21,725 $.
  • A figure at this level is achievable when containment effectiveness is genuinely sustained, not just peaked for a shift. The containment effectiveness percentage scales the variable cost linearly, so if your sort or firewall misses defects the real cost will exceed the estimate — it does not model latent field failures or brand damage.

Results at a glance

  • Total supplier escape cost: 21,725 $ (headline result)
  • Supplier escape cost per unit: 43.45 $ / piece
  • Variable supplier escape cost: 18,225 $
  • Fixed supplier escape cost adder: 3,500 $

Run it with your numbers

  • Every input above is editable in the live Supplier Escape Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.