Foundry & Forging worked example

Trim Loss Calculator at 72% share of loss charged to this job: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop share of loss charged to this job to 72%, then walk the calculation through step by step. Estimate cost of trim, flash, crop, cutoff, or excess billet loss in forging or casting operations.

The inputs for this scenario

  • Flash and trim scrap weight: 620 lb (held at the documented default)
  • Material cost per pound: 1.35 $ / lb (held at the documented default)
  • Share of loss charged to this job: 72 % (the input this scenario stresses; the baseline uses 100)
  • Fixed trimming and disposal cost: 180 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total trim loss calculator = trim or flash loss weight × material cost per weight unit × loss charged to this job + fixed trimming or disposal cost.
  • Total trim loss calculator works out to 783 $ at these inputs, and this is the headline figure for the scenario.
  • Trim loss cost per weight unit works out to 1.26 $ / piece at these inputs.
  • Variable trim loss calculator works out to 603 $ at these inputs.
  • Fixed trimming or disposal cost works out to 180 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where share of loss charged to this job sits at 100% and the headline result is 1,017 $, this scenario comes in 23.04% below the baseline at 783 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to share of loss charged to this job, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It values trim at full material cost; if your scrap has meaningful recovery or remelt value, the net loss is lower, so subtract recovered value separately to get a true net figure.

Results at a glance

  • Total trim loss calculator: 783 $ (headline result)
  • Trim loss cost per weight unit: 1.26 $ / piece
  • Variable trim loss calculator: 603 $
  • Fixed trimming or disposal cost: 180 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Trim Loss Calculator calculator, set share of loss charged to this job to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.