Clinical, Diagnostics & Lab Consumables Manufacturing worked example

Returned Kit Investigation Cost at 40% returns requiring full investigation or capa review: a worked example

Push returns requiring full investigation or capa review up to 40% and the picture changes. This example computes every intermediate figure at that operating point. a diagnostics or lab consumables team needs to budget complaint investigations, compare return scenarios, or justify corrective action on high-cost failure modes for a returned-kit complaint period

The inputs for this scenario

  • Returned kits or complaints investigated: 48 returns (unchanged)
  • Investigation cost per returned kit: 420 $ / return (unchanged)
  • Returns requiring full investigation or CAPA review: 40 % (raised for this scenario; the documented default is 35)
  • Fixed complaint handling, lab testing, and regulatory support cost: 6,800 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable returned kit investigation cost = returned kits or complaints investigated × investigation cost per returned kit × returns requiring full investigation or CAPA review) to the inputs above produces each figure below.
  • At this operating point the engine returns 14,864 total returned kit investigation cost for total returned kit investigation cost, the number this scenario is built around.
  • At this operating point the engine returns 310 $ / piece for investigation cost per returned kit.
  • At this operating point the engine returns 8,064 $ for variable returned kit investigation cost.
  • At this operating point the engine returns 6,800 $ for fixed complaint handling, lab testing, and regulatory support cost.

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 7.27% above the baseline at 14,864 total returned kit investigation cost.
  • It computes total investigation cost as the variable cost (returns times per-return cost times the escalation rate) plus a fixed complaint-handling, lab testing, and regulatory support cost. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Total returned kit investigation cost: 14,864 total returned kit investigation cost (headline result)
  • Investigation cost per returned kit: 310 $ / piece
  • Variable returned kit investigation cost: 8,064 $
  • Fixed complaint handling, lab testing, and regulatory support cost: 6,800 $

Run it with your numbers

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

Last reviewed 2026-05-12.