Please answer problem #3 part B, SHOWING ALL WORK ACCORDINGLY ON ALL PARTS. Thank you!

Vertical analysis (common-size) percentages for Sheridan Company's sales revenue, cost of goods sold, and expenses are listed here. Vertical Analysis 2022 2021 2020 100.0 % 100.0 % 100.0 % Sales revenue Cost of goods sold Expenses 614 64.9 65.7 24.3 27.0 29.6 (a1) Your answer has been saved. See score details after the due date Calculate Sheridan's net income as a percent of sales (Round answers to 1 decimal place, e8.5.2) 2022 2021 2020 Net income 143 8.1 (a2) Did Sheridan's net income as a percent of sales increase, decrease, or remain unchanged over the 3-year period? Sheridan's net income as a percent of sales