please help! not sure how to do these

Required information Problem 13-2A (Algo) Ratios, common-size statements, and trend percents LO P1, P2, P3 [The following information applies to the questions displayed below.] Selected comparative financial statements of Korbin Company follow. KORBIN COMPANY Comparative Income Statements For Years Ended December 31 2021 2020 2019 Sales $ 482,853 $ 369,905 $ 256,700 290,678 234,520 164,288 Cost of goods sold Gross profit 192,175 135,385 92,412 Selling expenses 68,565 51,047 33,884 Administrative expenses 43,457 32,552 21,306 Total expenses 112,022 83,599 55,190 Income before taxes i 51,786 37,222 10,616 7,556 Income tax expense Net income $ 41,170 $ 29,666 Assets Current assets Long-term investments Plant assets, net Total assets Liabilities and Equity Current liabilities Common stock Other paid-in capital Retained earnings Total liabilities and equity 80,153. 14,908 $ 65,245 KORBIN COMPANY Comparative Balance Sheets December 31 2021 2020 2019 $ 41,851 $ 55,944 $ 62,529 0 112,621 $175,150 1,200 102,446 $ 145,497 4,030 60,570 $ 120,544 $ 25,572 $ 21,679 $ 21,095 65,000 65,000 47,000 8,125 8,125 5,222 76,453 50,693 47,227 $ 175,150 $ 145,497 $ 120,544 Problem 13-2A (Algo) Part 2 2. Complete the below table to calculate income statement data in common-size percents. (Round your percentage answers to 2 decimal places.) KORBIN COMPANY Common-Size Comparative Income Statements For Years Ended December 31, 2021, 2020, and 2019 2021 2020 2019 Sales 13.50 % % Cost of goods sold Gross profit Selling expenses Administrative expenses Total expenses Income before taxes Income tax expense Net income % %