A comparative income statement is given below for McKenzie Sales, Limited, of Toronto: Sales McKenzie Sales, Limited Comparative Income Statement Cost of goods sold Gross margin Selling and administrative expenses: This Year $ 7,320,000 4,640,000 2,680,000 Last Year $ 5,563,200 3,514,500 2,048,700 Selling expenses Administrative expenses Total expenses Net operating income Interest expense Net income before taxes 1,695,500 1,375,000 1,080,000 702,500 615,500 2,077,500 602,500 99,000 $ 503,500 353,200 86,000 $ 267,200 Members of the company's board of directors are surprised to see that net income increased by only $236,300 when sales increased by $1,756,800. 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).)