Gibson Corporation reported the following operating results for two consecutive years: Required a. Compute the percentage changes in Gibson Corporation's income statement components between the two years. (Negative amounts should be indicated by a minus sign. Round your percentage answers to 1 decimal place. (i.e., 0.234 should be entere as 23.4).) GIBSON CORPORATION Income Statements Year 3 Year 2 Percentage Change Sales $ 1,296,000 $ 1,002.000 % Cost of goods sold 797.040 601,200. Gross margin 498,960 400.800 Operating expenses Income before taxes 300,500 200.000 198,460 200,800 Income taxes 61.200 52.400 Net income (loss) $ 137,260 $ 148,400