A comparative income statement is given below for McKenzie Sales, Limited, of Toronto: McKenzie Sales, Limited Comparative Income Statement Sales This Year $ 7,320,000 Cost of goods sold Gross margin 4,640,000 2,680,000 Selling and administrative expenses: Last Year $ 5,563,200 3,512,500 2,050,700 Selling expenses Administrative expenses Total expenses Net operating income Interest expense Net income before taxes 1,379,000 1,077,500. 707,500 609,500 2,086,500 1,687,000 593,500 363,700 103,000 $490,500 85,000 $ 278,700 Members of the company's board of directors are surprised to see that net income increased by only $211,800 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 (l.e., 0.1234 should be entered as 12.3).)