Pharmaceutical, Biotech & GMP Manufacturing worked example

Batch Failure Cost at 92% expected failure exposure: a worked example in pharmaceutical, biotech & gmp manufacturing

This scenario runs the batch failure cost calculation on the strong side: 92% expected failure exposure, with every other input held at its documented default. Use it when GMP, QA, QC, validation, manufacturing, or operations teams need a quick planning estimate to size batch risk reserves, compare prevention projects, and explain the cost of failed GMP production.

The inputs for this scenario

  • Failed or at-risk batches: 100 batches (unchanged)
  • Cost per failed batch: 45 $ / batch (unchanged)
  • Expected failure exposure: 92 % (raised for this scenario; the documented default is 80)
  • Fixed investigation or recovery cost: 250 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable Batch failure cost = Failed or at-risk batches × Cost per failed batch × Expected failure exposure) to the inputs above produces each figure below.
  • At this operating point the engine returns 4,390 $ for expected batch failure cost, the number this scenario is built around.
  • At this operating point the engine returns 43.9 $ / piece for failure cost per batch.
  • At this operating point the engine returns 4,140 $ for expected variable failure cost.
  • At this operating point the engine returns 250 $ for fixed recovery cost.

How this compares with the baseline

  • Against the tool's baseline example, where expected failure exposure sits at 80% and the headline result is 3,850 $, this scenario comes in 14.03% above the baseline at 4,390 $.
  • Use it to size the cost of quality risk when justifying process improvements or prioritizing failure modes. 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

  • Expected batch failure cost: 4,390 $ (headline result)
  • Failure cost per batch: 43.9 $ / piece
  • Expected variable failure cost: 4,140 $
  • Fixed recovery cost: 250 $

Run it with your numbers

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

Last reviewed 2026-05-12.