Textiles & Apparel Manufacturing worked example

Wash Shrinkage Rate at 99% right-first-time pass target: a worked example

This scenario runs the wash shrinkage rate calculation on the strong side: 99% right-first-time pass target, with every other input held at its documented default. Use it when wash shrinkage rate in textiles and apparel manufacturing needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Garments failing wash shrinkage tolerance: 8 count (unchanged)
  • Garments in the wash test lot: 250 count (unchanged)
  • Right-first-time pass target: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Wash shrinkage rate = wash shrinkage rate count ÷ total wash shrinkage rate population × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for wash shrinkage rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for wash shrinkage rate gap to target.
  • At this operating point the engine returns 8 count for wash shrinkage rate count.
  • At this operating point the engine returns 250 count for total wash shrinkage rate population.

How this compares with the baseline

  • Against the tool's baseline example, where right-first-time pass target sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it on a pull-out sample after wash testing a production lot, or during fabric approval to qualify a mill. 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

  • Wash shrinkage rate: 3.2 % (headline result)
  • Wash shrinkage rate gap to target: 95.8 points
  • Wash shrinkage rate count: 8 count
  • Total wash shrinkage rate population: 250 count

Run it with your numbers

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

Last reviewed 2026-05-12.