Smart Home & Consumer IoT Hardware worked example

Plastic Housing Scrap at 99% target scrap rate for the mold: a worked example

This scenario runs the plastic housing scrap calculation on the strong side: 99% target scrap rate for the mold, with every other input held at its documented default. Use it when plastic housing scrap in smart home and consumer iot hardware needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Molded housings scrapped for defects: 8 count (unchanged)
  • Total housings molded in the run: 250 count (unchanged)
  • Target scrap rate for the mold: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

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

How this compares with the baseline

  • Against the tool's baseline example, where target scrap rate for the mold sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • Use it after a molding run or shift to grade tool and process health and decide whether parameters or the mold need attention. 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

  • Plastic housing scrap rate: 3.2 % (headline result)
  • Plastic housing scrap gap to target: 95.8 points
  • Plastic housing scrap count: 8 count
  • Total plastic housing scrap population: 250 count

Run it with your numbers

  • Every input above is editable in the live Plastic Housing Scrap calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.