Consumer Goods & Durable Products Manufacturing worked example

Warranty Reserve at 3.68% expected warranty claim occurrence: a worked example in consumer goods & durable products manufacturing

This scenario runs the warranty reserve calculation on the strong side: 3.68% expected warranty claim occurrence, with every other input held at its documented default. setting warranty accruals, comparing product families, or funding corrective action for field issues

The inputs for this scenario

  • Shipped units covered by warranty: 25,000 units (unchanged)
  • Average warranty cost per claim or at-risk unit: 14.75 $ / unit (unchanged)
  • Expected warranty claim occurrence: 3.68 % (raised for this scenario; the documented default is 3.2)
  • Fixed warranty campaign and claims administration cost: 22,000 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable warranty reserve = shipped units covered by warranty × average warranty cost per claim or at-risk unit × expected warranty claim occurrence) to the inputs above produces each figure below.
  • At this operating point the engine returns 35,570 $ for total warranty reserve, the number this scenario is built around.
  • At this operating point the engine returns 1.42 $ / piece for expected warranty exposure per shipped unit.
  • At this operating point the engine returns 13,570 $ for variable warranty reserve.
  • At this operating point the engine returns 22,000 $ for fixed warranty campaign and claims administration cost.

How this compares with the baseline

  • Against the tool's baseline example, where expected warranty claim occurrence sits at 3.2% and the headline result is 33,800 $, this scenario comes in 5.24% above the baseline at 35,570 $.
  • Use it at period close to set or true-up the warranty accrual, and whenever a new product ships or field data shifts the expected claim rate. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • total warranty reserve: 35,570 $ (headline result)
  • expected warranty exposure per shipped unit: 1.42 $ / piece
  • variable warranty reserve: 13,570 $
  • fixed warranty campaign and claims administration cost: 22,000 $

Run it with your numbers

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

Last reviewed 2026-05-12.