Income statements for Stuart Company for Year 3 and Year 4 follow: STUART COMPANY Income Statements Sales Year 41 $201,100 Year 31 $181,100 Cost of goods sold 143,600 121,600 Selling expenses 20,800 18,800 Administrative expenses 12,400 14,400 Interest expense 3,300 5,300 Total expenses $180,100 $160,100 Income before taxes Income taxes expense Net income 21,000 5,200 21,000 3,200 $ 15,800 $ 17,800 Required a. Perform a horizontal analysis, showing the percentage change in each income statement component between Year 3 and Year 4. b. Perform a vertical analysis, showing each income statement component as a percentage of sales for each year. Complete this question by entering your answers in the tabs below. Required A Required B Perform a horizontal analysis, showing the percentage change in each income statement component between Year 3 and Year 4. (Negative answers should be indicated by a minus sign. Round your percentage answers to 1 decimal place. (i.e., 0.234 should be entered as 23.4).) STUART COMPANY