Common-size and trend percentages for a company's net sales, cost of goods sold, and expenses follow: Trend Percentages 2022 105.6% 110.7 105.0 Net sales Cost of goods sold. Expenses Common-Size Percentages 2021 100.0% 46.4 21.3 2023 100.0% 52.7 22.9 2022 100.0% 49.7 19.1 2023 106.8% 116.0 112.5 2021 100.0% 100.0 100.0 Required: a. Calculate the profit percentage for 2021, 2022 and 2023. (Round the final answers to 2 decimal places.)