Packaging Automation & End-of-Line Systems worked example
Checkweigher Reject Cost at 58% share scrapped not reworked: a worked example
This worked example runs the checkweigher reject cost numbers for a tougher week than the baseline: 58% share scrapped not reworked instead of the typical 80%. Estimate the cost of packs rejected at the checkweigher from reject count, value per rejected pack, scrap share, and fixed recheck cost.
The inputs for this scenario
- Packs rejected: 100 packs (held at the documented default)
- Value per rejected pack: 45 $ / pack (held at the documented default)
- Share scrapped not reworked: 58 % (the input this scenario stresses; the baseline uses 80)
- Fixed recheck and disposal cost: 250 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable reject cost = packs rejected × value per rejected pack × share scrapped not reworked.
- Total checkweigher reject cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
- Reject cost per pack works out to 28.6 $ / pack at these inputs.
- Variable reject cost works out to 2,610 $ at these inputs.
- Fixed recheck and disposal cost works out to 250 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where share scrapped not reworked sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
- Use it when a reject spike hits, when justifying a filler upgrade, or when building the quality cost section of a line's monthly report. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.
Results at a glance
- Total checkweigher reject cost: 2,860 $ (headline result)
- Reject cost per pack: 28.6 $ / pack
- Variable reject cost: 2,610 $
- Fixed recheck and disposal cost: 250 $
Run it with your numbers
- To rerun this with your own numbers, open the live Checkweigher Reject Cost calculator, set share scrapped not reworked to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.