Smart Home & Consumer IoT Hardware worked example

Plastic Housing Scrap at 68% target scrap rate for the mold: a worked example

Suppose target scrap rate for the mold falls to 68%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate plastic housing scrap for smart home and consumer IoT hardware using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.

The inputs for this scenario

  • Molded housings scrapped for defects: 8 count (held at the documented default)
  • Total housings molded in the run: 250 count (held at the documented default)
  • Target scrap rate for the mold: 68 % (the input this scenario stresses; the baseline uses 95)

Working through the calculation

  • The calculation starts from the formula this tool documents: Plastic housing scrap rate = plastic housing scrap count ÷ total plastic housing scrap population × 100.
  • Plastic housing scrap rate works out to 3.2 % at these inputs, and this is the headline figure for the scenario.
  • Plastic housing scrap gap to target works out to 64.8 points at these inputs.
  • Plastic housing scrap count works out to 8 count at these inputs.
  • Total plastic housing scrap population works out to 250 count at these inputs.

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 %.
  • It computes the percentage of molded housings scrapped, then the point gap between that scrap rate and your target. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Plastic housing scrap rate: 3.2 % (headline result)
  • Plastic housing scrap gap to target: 64.8 points
  • Plastic housing scrap count: 8 count
  • Total plastic housing scrap population: 250 count

Run it with your numbers

  • To rerun this with your own numbers, open the live Plastic Housing Scrap calculator, set target scrap rate for the mold to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.