Nuke-It-Now manufactures microwave ovens. The following represents the financial information from one of its manufacturing plants for two years Sales Costs 53,560.000 3,900,000 Redesign process Discard defective units Training on equipment Warranty claims Contract cancel ations Rework Preventive maintenance Product liability claims Final in S 29.000 37.200 45.300 213.000 178,000 160,000 103,000 54,000 177,000 98,000 36.900 247.000 131,000 209,000 70.000 106.000 303,000 205,000 Required a. Classify these items into Prevention, Appraisal, Internal failure, or External failure costs. Answer is complete but not entirely correct. Act Redesign process Discard defective units Internal failure Training on equipment Warranty claims Contract cancellations Rework Preventive Prevention Prevention External failure External failure Prevention Prevention Product liability claims External failure Final inspection Appraisal b. Calculate the ratio of the prevention, appraisal, internal failure, and external failure costs to sales for year 1 and year 2. (Enter your answers as a percentage rounded to 1 decimal place (i.e., 32.1)) Appraisal Internal failure External failure