need help with all 3 parts including help understanding the math

Required information (The following information applies to the questions displayed below) Selected comparative financial statements of Korbin Company follow. KORDIN COMPANY Comparative Income Statements Tor Year Ended December 31 2021 2020 Sales $ 502,970 $ 305,325 Cont of good old 302792 240,027 Gross profit 200,180 146,496 Selling expenses 71.42) 53.175 Ministrative expenses 33.900 Total expenses 116.691 87,083 Income before taxe 03.495 57,413 Income tax expense 15.530 11.230 Net Income $67,965 $ 45,543 2019 $ 267,400 171,135 96,264 35,297 22. 194 57,491 38,773 2,021 $ 30,902 2019 KORDIN COMPANY Comparative Balance Sheets December 31 2021 2020 Assets Current set $. 62,167 $ 41,60 Long-term investments 0 400 Plants, bet 112.242 102.030 Totalt $ 179.414 $149.00 Lists and ty Current liabilities 5.26.134 $ 22,207 Common stock 69,000 69,000 $ 55,621 3.480 60377 3. 123,478 21,609 51,000 $ 179,414 $ 149,038 $ 123,478 Total assets Liabilities and Equity Current liabilities Connon stock Other paid in capital Retained earnings Total abilities and equity $ 26, 194 69,000 8,625 75,595 $ 179,414 $ 22,207 $ 21,609 69.000 51,000 8,625 5.667 49,206 45,202 $ 149,038 $ 123,478 2. Complete the below table to calculate income statement data in common-size percents (Round your percentage answers to 2 decimal places.) KORDIN COMPANY Common Size Comparative Income Statements For Years Ended December 31, 2021, 2020, and 2010 2020 2010 Sales % Cost of goods sold Gross profit Selling expenses Administrative expenses Total expenses 2021 Income before taxes Income tax expense Net Income % 3. Complete the below table to calculate the balance sheet data in trend percents with 2019 as base year. (Round your percentage answers to 2 decimal places.) KORBIN COMPANY Balance Sheet Data in Trend Percents December 31, 2021, 2020 and 2010 2021 2020 2019 % 100.00 % 100.00 100.00 100.00% % 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 % 100.00 100.00 100.00 100.00 100.00 % 4. Refer to the results from parts 1, 2 and 3. (8) Did cost of goods sold make up a greater portion of sales for the most recent year compared to the prior year? Yes O No (b) Did Income as a percent of sales improve in the most recent year compared to the prior year? Yes O No (c) Did plant assets grow over this period? Yes ONo