Required information [The following information applies to the questions displayed below.) Acme Materials Company manufactures and sells synthetic coatings that can withstand high temperatures. Its primary customers are aviation manufacturers and maintenance companies. The following table contains financial information pertaining to cost of quality (COQ) in 2019 and 2020 (in thousands of dollars): Sales Materials inspection In-process (production) inspection Finished product inspection Preventive equipment maintenance Scrap (net) Warranty repairs Product design engineering Vendor certification Direct costs of returned goods Training of factory workers Product testing-equipment maintenance Product testing labor Field repairs Rework before shipment Product-Liability settlement Emergency repair and maintenance 2019 2020 $15,600 $19,600 260 56 156 121 210 66 16 56 460 260 660 410 146 230 24 56 235 76 36 136 56 56 170 86 66 36 200 196 320 56 160 71 Required: 1. Classify the cost items in the table into cost-of-quality (COQ) categories. 2. Calculate the ratio of each COQ category to revenues in each of the 2 years. 3. Calculate the percentage change in each COQ category and total COQ and comment on the results: a. Percentage change in total COQ as a percentage of sales, from 2019 to 2020: b. Total CoQ in 2020 expressed as a percentage of 2019 sales dollars, c. Percentage change in total prevention costs, 2019 to 2020; d. Percentage change in total appraisal costs, 2019 to 2020; e. Percentage change in total internal failure costs, 2019 to 2020; f. Percentage change in total external failure costs, 2019 to 2020