PPE & Infection Control Products worked example

Warranty Reserve at 1.08% expected warranty claim rate: a worked example in ppe & infection control products

Here is what the math looks like when conditions slip. We hold every other input steady and drop expected warranty claim rate to 1.08%, then walk the calculation through step by step. Estimates the warranty reserve to set aside for PPE and infection-control products shipped to customers.

The inputs for this scenario

  • PPE units under warranty: 100,000 units (held at the documented default)
  • Cost to replace or refund one claimed unit: 0.95 $/unit (held at the documented default)
  • Expected warranty claim rate: 1.08 % (the input this scenario stresses; the baseline uses 1.5)
  • Fixed claims admin & logistics cost: 1,500 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Warranty reserve = units under warranty x cost per claim x expected claim rate% + admin & logistics.
  • Total warranty reserve cost works out to 2,526 $ at these inputs, and this is the headline figure for the scenario.
  • Warranty reserve cost per unit works out to 0.03 $ / piece at these inputs.
  • Variable warranty reserve cost works out to 1,026 $ at these inputs.
  • Fixed warranty reserve adder works out to 1,500 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected warranty claim rate sits at 1.5% and the headline result is 2,925 $, this scenario comes in 13.64% below the baseline at 2,526 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to expected warranty claim rate, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses a single average claim rate and cost; a systemic defect or recall can produce claims far above the modeled rate, so treat it as a baseline accrual, not a worst-case ceiling.

Results at a glance

  • Total warranty reserve cost: 2,526 $ (headline result)
  • Warranty reserve cost per unit: 0.03 $ / piece
  • Variable warranty reserve cost: 1,026 $
  • Fixed warranty reserve adder: 1,500 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Warranty Reserve calculator, set expected warranty claim rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.