A comparative income statement is given below for McKenzie Sales, Ltd., of Toronto: | McKenzie Sales, Ltd. Comparative Income Statement | | This Year | Last Year | Sales | $ | 7,310,000 | | $ | 5,555,600 | | Cost of goods sold | | 4,700,000 | | | 3,513,500 | | | | | | | | | Gross margin | | 2,610,000 | | | 2,042,100 | | | | | | | | | Selling and administrative expenses: | | | | | | | Selling expenses | | 1,377,000 | | | 1,079,500 | | Administrative expenses | | 707,500 | | | 611,500 | | | | | | | | | Total expenses | | 2,084,500 | | | 1,691,000 | | | | | | | | | Net operating income | | 525,500 | | | 351,100 | | Interest expense | | 102,000 | | | 87,000 | | | | | | | | | Net income before taxes | $ | 423,500 | | $ | 264,100 | | | | | | | | | | Members of the companys board of directors are surprised to see that net income increased by only $159,400 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).) | |