Work out yield rate instantly with clear inputs, formula shown and shareable results.
Yield rate counts everything that eventually ships as good, including units rescued by rework. First pass yield counts only units that were right the first time, and the gap between the two is the hidden cost of quality.
Yield rate
Yield % = Good units / Units started x 100
First pass yield
FPY % = (Good units - Reworked units) / Units started x 100
Because rework consumes capacity, materials and inspection time that never appear in the scrap number. FPY exposes it.
Multiply the step yields. Ten steps at 98% give 81.7% rolled throughput yield.