A comparative income statement is given below for McKenzie Sales, Limited, of Toronto: McKenzie Sales, Limited Comparative Income Statement Sales Cost of goods sold Gross margin Selling and administrative expenses: Selling expenses Administrative expenses Total expenses Net operating income This Year. Last Year $ 7,370,000 4,640,000 2,730,000 $5,601,200 3,506,000 2,095,200 1,396,000 1,077,500 704,000 611,000 2,100,000 1,688,500 Interest expense Net income before taxes 630,000 103,000 $527,000 406,700 94,000 $ 312,700 Members of the company's board of directors are surprised to see that net income increased by only $214,300 when sales increased by $1,768,800. 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).) Sales Cost of goods sold Gross margin Selling and administrative expenses: This Year Last Year % % % % % % Selling expenses % % Administrative expenses % % Total selling and administrative expenses % % Net operating income % % Interest expense % Net income before taxes %