Acoustic, Noise, Vibration & NVH Products worked example

Acoustic Material Scrap Rate at 5.75% target scrap rate: a worked example

What does the result look like when target scrap rate reaches 5.75%? The full calculation is worked below with real intermediate numbers. a quality manager or production lead needs to track material scrap for acoustic and NVH parts

The inputs for this scenario

  • Scrapped acoustic material: 86 sq ft (unchanged)
  • Total acoustic material issued to line: 1,450 sq ft (unchanged)
  • Target scrap rate: 5.75 % (raised for this scenario; the documented default is 5)

Working through the calculation

  • Applying the documented formula (Scrap rate = scrapped acoustic material รท total material issued) to the inputs above produces each figure below.
  • At this operating point the engine returns 5.93 % for material scrap rate, the number this scenario is built around.
  • At this operating point the engine returns -0.18 points for gap to target.
  • At this operating point the engine returns 86 sq ft for scrapped material.
  • At this operating point the engine returns 1,450 sq ft for material issued.

How this compares with the baseline

  • Against the tool's baseline example, where target scrap rate sits at 5% and the headline result is 5.93 %, this scenario lands almost exactly on the baseline at 5.93 %.
  • A figure at this level is achievable when target scrap rate is genuinely sustained, not just peaked for a shift. It treats all square footage as equal value, so premium barrier composite and cheap open-cell foam scrap weigh the same here even though their cost impact differs sharply.

Results at a glance

  • Material scrap rate: 5.93 % (headline result)
  • Gap to target: -0.18 points
  • Scrapped material: 86 sq ft
  • Material issued: 1,450 sq ft

Run it with your numbers

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

Last reviewed 2026-05-12.