prepare a horizontal and vertical analysis

For the years ended December 31 (in millions) Net Sales Cost of Goods Sald Gross Profit Selling and Administrative Expenses Operating Income Interest Expense income Before Income Tax Income Tax Expense Net Income 2019 P4,972 3,046 P1,926 1.556 P 370 88 P 282 2018 P4,150 2.444 1,706 1.500 206 92 114 Required: Prepare the first phase of vertical and horizontal analysis