Clinical, Diagnostics & Lab Consumables Manufacturing worked example

Returned Kit Investigation Cost at 25% returns requiring full investigation or capa review: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop returns requiring full investigation or capa review to 25%, then walk the calculation through step by step. Estimate cost exposure from returned diagnostic kits, including complaint intake, investigation labor, retained-sample testing, replacement product, and CAPA support.

The inputs for this scenario

  • Returned kits or complaints investigated: 48 returns (held at the documented default)
  • Investigation cost per returned kit: 420 $ / return (held at the documented default)
  • Returns requiring full investigation or CAPA review: 25 % (the input this scenario stresses; the baseline uses 35)
  • Fixed complaint handling, lab testing, and regulatory support cost: 6,800 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Variable returned kit investigation cost = returned kits or complaints investigated × investigation cost per returned kit × returns requiring full investigation or CAPA review.
  • Total returned kit investigation cost works out to 11,840 total returned kit investigation cost at these inputs, and this is the headline figure for the scenario.
  • Investigation cost per returned kit works out to 247 $ / piece at these inputs.
  • Variable returned kit investigation cost works out to 5,040 $ at these inputs.
  • Fixed complaint handling, lab testing, and regulatory support cost works out to 6,800 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where returns requiring full investigation or capa review sits at 35% and the headline result is 13,856 total returned kit investigation cost, this scenario comes in 14.55% below the baseline at 11,840 total returned kit investigation cost.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to returns requiring full investigation or capa review, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes a single average cost per investigated return, but a sterility or false-result investigation can cost many times a cosmetic-packaging complaint, so the blended rate hides high-severity outliers.

Results at a glance

  • Total returned kit investigation cost: 11,840 total returned kit investigation cost (headline result)
  • Investigation cost per returned kit: 247 $ / piece
  • Variable returned kit investigation cost: 5,040 $
  • Fixed complaint handling, lab testing, and regulatory support cost: 6,800 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Returned Kit Investigation Cost calculator, set returns requiring full investigation or capa review to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.