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120) The following represents the financial information of Fabriz Corporation, a manufacturer of
electronic components, for two months:
March April
Sales $ 539,000 $ 495,000
Costs:
Process inspection 3,300 3,760
Scrap 3,700 3,860
Quality training 37,600 26,000
Warranty repairs 8,600 9,600
Testing equipment 14,000 14,000
Customer complaints 5,600 6,800
Rework 34,000 37,000
Preventive maintenance 27,000 19,000
Materials inspection 13,000 9,600
Field testing 18,800 24,800
Required:
a. Classify these items into prevention, appraisal, internal failure, or external failure costs.
b. Calculate the ratio of the prevention, appraisal, internal failure, and external failure costs to
sales for March and April.