The following represents the financial Information for Domingo Corporation for two months. March $535,000 April $350,000 Sales revenue Costs Process inspection Scrap Quality training Warranty repairs Product testing equipment Customer complaints Rework Preventive maintenance Materials inspection Field testing $ 1,800 1,850 20,600 4,400 7,800 2,600 19,880 12,800 6,100 9,180 $ 1,970 1,980 12,180 4,988 7,200 3,600 19,888 8,888 5,000 13,300 Required: a. Classify these items Into Prevention, Appraisal, Internal fallure, or External failure costs. b. Calculate the ratio of the prevention, appraisal, Internal failure, and external fallure costs to sales for March and April