He following percentages apply to Thornton Company for 2018 and 2019: 2019 2018 Sales 100.0 % 100.0 % Cost of goods sold 61.0 64.0 Gross margin 39.0 36.0 Selling and administrative expense 26.5 20.5 Interest expense 2.5 2.0 Total expenses 29.0 22.5 Income before taxes 10.0 13.5 Income tax expense 5.5 7.0 Net income 4.5 % 6.5 % Required Assuming that sales were $800,000 in 2018 and $960,000 in 2019, prepare income statements for the two years.