Composites, Fiberglass & Advanced Materials worked example

Prepreg Scrap Cost at 110% share of scrap charged to this job: a worked example

Push share of scrap charged to this job up to 110% and the picture changes. This example computes every intermediate figure at that operating point. pricing prepreg scrap exposure in a composite build

The inputs for this scenario

  • Prepreg material scrapped on this job: 42 lb (unchanged)
  • Delivered prepreg cost per pound: 84 $ / lb (unchanged)
  • Share of scrap charged to this job: 110 % (raised for this scenario; the documented default is 100)
  • Scrap handling and disposal cost: 250 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable prepreg scrap cost = scrapped prepreg weight × prepreg material cost × scrap cost scope included) to the inputs above produces each figure below.
  • At this operating point the engine returns 4,131 $ for total prepreg scrap cost, the number this scenario is built around.
  • At this operating point the engine returns 98.35 $ / piece for prepreg scrap cost per part or job.
  • At this operating point the engine returns 3,881 $ for variable prepreg scrap cost.
  • At this operating point the engine returns 250 $ for scrap handling and disposition cost.

How this compares with the baseline

  • Against the tool's baseline example, where share of scrap charged to this job sits at 100% and the headline result is 3,778 $, this scenario comes in 9.34% above the baseline at 4,131 $.
  • It computes the total dollar cost of scrapped prepreg by multiplying scrapped weight by material cost per pound and adding handling and disposition cost. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • total prepreg scrap cost: 4,131 $ (headline result)
  • prepreg scrap cost per part or job: 98.35 $ / piece
  • variable prepreg scrap cost: 3,881 $
  • scrap handling and disposition cost: 250 $

Run it with your numbers

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

Last reviewed 2026-05-12.