Cost of Quality

Cost of quality, abbreviated as COQ, is the sum of all costs associated with conformance and nonconformance.

 

Cost of Quality Formula

\(\large{ COQ =  AC + EFC + IFC + PC   }\)

Symbol

\(\large{ COQ }\) = cost of quality

\(\large{ AC }\) = appraisal costs

\(\large{ EFC }\) = external failure costs

\(\large{ IFC }\) = internal failure costs

\(\large{ PC }\) = prevention costs