do not know how to do this one

comparative income statement is given below for McKenzie Sales, Limited, of Toronto: Members of the company's board of directors are surprised to see that net income increased by only $60,400 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)