A comparative income statement is given below for McKenzie Sales, Ltd., of Toronto:

McKenzie Sales, Ltd. Comparative Income Statement
	This Year			Last Year
Sales	$	7,330,000		$	5,570,800
Cost of goods sold		4,690,000			3,507,500
Gross margin		2,640,000			2,063,300
Selling and administrative expenses:
Selling expenses		1,385,000			1,074,500
Administrative expenses		703,500			616,000
Total expenses		2,088,500			1,690,500
Net operating income		551,500			372,800
Interest expense		104,000			91,000
Net income before taxes	$	447,500		$	281,800

Members of the companys board of directors are surprised to see that net income increased by only $165,700 when sales increased by $1,759,200.

Required:

1. Express each year's income statement in common-size percentages.