15. Liberty Corp. reported the following on its comparative income statement: (In millions) 2019 2018 Net Sales Revenue $ 18,000 $ 16,000 Cost of Goods Sold 7,000 4,000 Prepare a horizontal analysis of net sales revenue, cost of goods sold, and gross profitboth in dollar amounts and in percentages. (Enter amounts in millions. Round the percentages to the nearest percent, X%. Use a minus sign or parentheses to indicate a decrease.) Liberty, Corp. Income Statement - (Partial) Years Ended December 31, 2019 and 2018 Increase (Decrease) 2019 2018 (Amounts in millions) Amount Percentage Net Sales Revenue $ 18,000 $ 16,000 % Cost of Goods Sold 7,000 4,000 % Gross Profit %