PLEASE HELP

March $500,000 April $380,000 $ $ Sales revenue Costs Process inspection Scrap Quality training Warranty repairs Product testing equipment Customer complaints Rework Preventive maintenance Materials inspection Field testing 1,800 1,900 19,400 4,300 7,000 2,900 16,000 15,100 7,000 9,300 1,970 1,860 13,100 4,900 6,700 3,600 19,000 10,500 4,600 13,500 Required: a. Classify these items into Prevention, Appraisal, Internal failure, or External failure costs. Category Activity Process inspection Scrap Quality training Warranty repairs Product testing equipment Customer complaints Rework Preventive maintenance Materials inspection Field testing b. Calculate the ratio of the prevention, appraisal, internal failure, and external failure costs to sales for March and April. (Enter your answers as a percentage rounded to 1 decimal place (i.e., 32.1).) March April Prevention Appraisal Internal failure External failure