Sales Cost of goods sold 2021 $ 80,000 70,200 2020 $ 67,000 44,700 2019 $ 63,000 43,200 2018 $ 58,000 33,000 2017 $ 50,000 30,000 Dollar amounts stated are in thousands a. Compute trend percentages for the above items taken from the financial statements of Lopez Plumbing over a five-year period, Treat 2017 as the base year. b. State whether the trends are favorable or unfavorable. Complete this question by entering your answers in the tabs below. Required A Required B Compute trend percentages for the above items taken from the financial statements of Lopez Plumbing over a five-year period. Treat 2017 as the base year. (Round your answers to the nearest whole percent. I.e. 1.2345 as 123%) 2021 2020 2019 2018 2017 Sales Cost of goods sold % % % % % Romuld Required B >