Sales Year 2 Year 1 $500,000 $440,000 Cost of goods sold 325,000 242,000 Selling expenses 70,000 79,200 Administrative expenses 75,000 70,400 Income tax expense 10,500 16,400 (a) Prepare an income statement in comparative form, stating each item for both years as an (b) amount and as a percent of sales. Round to the nearest whole percent. Comment on the significant changes disclosed by the comparative income statement.