Cost of Quality Formula |
| \( COQ \;=\; AC + EFC + IFC + PC \) |
| Symbol |
| \( COQ \) = Cost of Quality |
| \( AC \) = Appraisal Costs |
| \( EFC \) = External Failure Costs |
| \( IFC \) = Internal Failure Costs |
| \( PC \) = Prevention Costs |
Cost of quality, abbreviated as COQ, is the sum of all costs associated with conformance and nonconformance.
