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		4,670,000			3,509,000
Gross margin		2,640,000			2,046,600
Selling and administrative expenses:
Selling expenses		1,393,000			1,074,000
Administrative expenses		705,000			610,000
Total expenses		2,098,000			1,684,000
Net operating income		542,000			362,600
Interest expense		103,000			85,000
Net income before taxes	$	439,000		$	277,600

Members of the companys board of directors are surprised to see that net income increased by only $161,400 when sales increased by $1,754,400.

Required:

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