Income Statement ($000) For Years Ended December 31 2017 2016 2015 Net sales $208,100 $191,300 $166,100 Cost of goods sold 124,959 119,225 105,953 Gross profit from $ 83,141 $ 72,075 $ 60,147 sales Selling expenses $ 29,392 $ 26,410 $ 21,941 Administrative 18,821 26,845 13,719 expenses Total operating expenses $ 48,213 $ 53,255 $ 35,660 Profit before taxes $ 34,928 $ 18,820 Income taxes 6,558 5,942 $ 24,487 5,008 Profit $ 28,370 $ 12,878 $ 19,479 Required: 1. Express the income statement data in common-size percentages. (Round your final percentag GLASS INC. Common-size Income Statement 2017 Net sales Cost of goods sold Gross profit from sales Total operating expenses