Thornton Corporation reported the following operating results for two consecutive years: Required a. Compute the percentage changes in Thornton 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).) THORNTON CORPORATION Income Statements Percentage Year 3 Year 2 Change Sales $ 1,295,000 $1,004,500 29.0 % Cost of goods sold 796,425 602,700 Gross margin Operating expenses Income before taxes 498,575 401,800 302,500 197,500 196,075 204,300 Income taxes 61,600 52,300 Net income (loss) $ 134,475 $ 152,000 %