Finishing worked example
Masking Labor Cost with parts masked of 50 parts: a worked example in finishing
Suppose parts masked falls to 50 parts. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate masking and unmasking labor cost from part count, labor cost per part, setup labor, and rework burden.
The inputs for this scenario
- Parts masked: 50 parts (the input this scenario stresses; the baseline uses 100)
- Masking labor per part: 2.5 $ / part (held at the documented default)
- Setup labor cost: 150 $ (held at the documented default)
- Unmasking and rework burden: 75 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Total cost = quantity × unit cost + labor/downtime + overhead.
- Total cost works out to 350 $ / job at these inputs, and this is the headline figure for the scenario.
- Cost per piece works out to 7 $ / piece at these inputs.
- Variable cost works out to 125 $ at these inputs.
- Fixed adders works out to 225 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where parts masked sits at 100 parts and the headline result is 475 $ / job, this scenario comes in 26.32% below the baseline at 350 $ / job.
- It sums per-part masking labor with setup and rework burden to give total masking cost and cost per piece. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.
Results at a glance
- Total cost: 350 $ / job (headline result)
- Cost per piece: 7 $ / piece
- Variable cost: 125 $
- Fixed adders: 225 $
Run it with your numbers
- To rerun this with your own numbers, open the live Masking Labor Cost calculator, set parts masked to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.