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Good Parts after Scrap

Translate attempted parts and an aggregate scrap rate into expected good parts, scrap, and yield.

Example starting values are prefilled to demonstrate the calculation. Replace them with your measured, quoted, or job-specific inputs before relying on a result.

Inputs

Inputs

Range: at least 0 parts

Total molded parts inspected/attempted for the same run and scrap-rate basis. Enter a whole-number count; decimal values are rejected. Zero is allowed.

Range: 0–100 %

Enter rejected parts ÷ attempted parts as a percentage from 0% through 100%. Include startup scrap only if it is included in both this rate and attempted count.

Result

Good-part yield
0.75
Expected good parts (parts)
7,500.000
Expected scrapped parts (parts)
2,500.000
Interpretation and limits
Good and scrap counts are expected values from the entered average rate and may be fractional. Actual quality results vary by cavity and time; align the attempted count and scrap-rate scope, especially for startup, rework, and cavity-specific rejects. This estimate does not identify causes or predict process performance.

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