A comparative income statement is given below for Mckenzie Sales, Limited, of Toronto: Mckenzie Sales, Limited Comparative Income Statement This Year Last Year Sales $ 7, 310, 000 $ 5,555, 600 Cost of goods sold 4, 630, 000 3, 515, 000 Gross margin 2, 680, 900 2, 040, 600 Selling and administrative expenses: Selling expenses 1, 374, 900 1, 079, 500 Administrative expenses 704,900 614,500 Total expenses 2, 078,000 1, 694,900 Net operating income 602,900 346,600 Interest expense 101,900 93,000 Net income before taxes $ 501,906 $ 253, 606 Members of the company's board of directors are surprised to see that net income increased by only $247,400 when sales increased by $1,754,400. Required: 1. Express each year's income statement in common-size percentages. (Round your percentage answers to 1 decimal place (i.e., 0.1234 should be entered as 12.3).) This Year Last Year Sales % % Cost of goods sold % % Gross margin 0.0 % 0.0 % Selling and administrative expenses: Selling expenses Administrative expenses % Total selling and administrative expenses 0.0 % 0.0 % Net operating income 0.0 % 0.0 % Interest expense % % Net income before taxes 0.0 % 0.0 %