Single-Use Bioprocess Assemblies worked example

Scrap Cost at 66% non-recoverable share: a worked example in single-use bioprocess assemblies

Here is what the math looks like when conditions slip. We hold every other input steady and drop non-recoverable share to 66%, then walk the calculation through step by step. Estimate the cost of scrapped single-use bioprocess assemblies from rejected units, built-up material value, and disposal handling.

The inputs for this scenario

  • Assemblies Scrapped: 45 assemblies (held at the documented default)
  • Built-Up Material Cost: 380 $/assembly (held at the documented default)
  • Non-Recoverable Share: 66 % (the input this scenario stresses; the baseline uses 92)
  • Disposal & Documentation Fee: 1,200 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Total scrap cost = assemblies scrapped x built-up cost x non-recoverable share + disposal fee.
  • Total scrap cost works out to 12,486 $ at these inputs, and this is the headline figure for the scenario.
  • Scrap cost per unit works out to 277 $ / piece at these inputs.
  • Variable scrap cost works out to 11,286 $ at these inputs.
  • Fixed scrap cost adder works out to 1,200 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where non-recoverable share sits at 92% and the headline result is 16,932 $, this scenario comes in 26.26% below the baseline at 12,486 $.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to non-recoverable share, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It treats non-recoverable share and disposal fee as flat inputs and does not model batch write-off, downstream schedule loss, or the cost of a resulting deviation investigation beyond the documentation line.

Results at a glance

  • Total scrap cost: 12,486 $ (headline result)
  • Scrap cost per unit: 277 $ / piece
  • Variable scrap cost: 11,286 $
  • Fixed scrap cost adder: 1,200 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Scrap Cost calculator, set non-recoverable share to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.