calculate the % changes and Pick three significant % change and explain the reason for % change

INCOME STATEMENT 2021 % Revenue Cost of Goods Sold Gross Profit SG&A expenses Operating income Other Operating Expenses Interest Expense Income Tax Expense Total Expenses 2020 1,869,835 1,627,169 242,666 232,802 -10,332 65,070 9,186 2,762 9,186 -68,008 1,971,869 1,694,190 277,679 223,703 23,880 22,018 15,428 10,457 5,428 35,941 Net Income