Variline Corporation reported the following on its comparative income statement: (in millions) 2017 2016 Revenue Cost of sales $ $ 10,506 $ 10,200 5,358 $ 5,250 2015 10,000 4,500 Perform a horizontal analysis of revenues and gross profit-both in dollar amounts and in percentages-for 2017 and 2016. (Round your answers to two decimal places. Use a minus sign or parentheses to represent a decrease in amount or percentage.) Variline Corporation Comparative Income Statement For The Years Ended December 31, 2017 and 2016 Increase/(Decrease) (amounts in millions) 2017 2016 2017 2016 2015 Change Percentage Change Percentage Revenue 10,506 $ 5,358 Cost of Sales 10,200 $ 10,000 5,250 4,500 % % Gross Profit % %