58 TESTCO, INC. Income Statement (in millions) For the Year Ended December 31, 2017 Net Sales Cost of Goods Sold Gross Profit Operating Expenses Net Income For vertical analysis, a common-size income statement would show cost of goods sold at? $150 90 60 40 $ 20 a. b. ?. d. 450% 167% 60% No percent be computed from the data provided