please help

A comparative Income statement is given below for McKenzie Sales, Limited, of Toronto: Mckenzie Sales, Limited Comparative Income Statement This Year Last Year Sales $. 7,370,000 $5,601,200 Cost of goods sold 4.590.000 3,507,500 Gross margin 2,780,000 2,093,700 Selling and administrative expenses Selling expenses 1,378,000 1,075,500 Administrative expenses 707,000 610,500 Total expenses 2,085,000 1.686,000 Net operating income 695,000 407, 200 Interest expense 102,000 89.000 Net income before taxes $ 593,000 $ 319,700 Members of the company's board of directors are surprised to see that net income increased by only $274,300 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 (l.eu, 0.1234 should be entered as 12.3).) This Your Last Yoar % % % % % % % Sales Cost of goods sold Gross margin Selling and administrative expenses Selling expenses Administrative expenses Total selling and administrative expenses Net operating income Interest expenso Net Income before taxes % 9 % % 34 95 5