Exercise 13-1A Horizontal analysis LO 13-1 Campbell Corporation reported the following operating results for two consecutive years: Required a. Compute the percentage changes in Campbell Corporation's income statement components between the two years. (Negative amounts should be indicated by a minus sign. Round your answers to 1 decimal place.(i.e.,.234 should be entered as 23.4).) CAMPBELL CORPORATION Income Statements 2018 2017 Percentage Change Sales Cost of goods sold Gross margin Operating expenses Income before taxes Income taxes Not Income (loss) $ 1.298,000 $ 1.001.000 798,270 600,600 499.730 400,400 300,000 199,000 199.730 201,400 61,500 52.900 $ 138,230 $ 148,500 %