2020 Vertical analysis (common-size) percentages for Palau Company's sales revenue, cost of goods sold, and expenses are as follows. Vertical Analysis 2019 2018 Sales revenue 100.0 % 100.0 % 100.0 % Cost of goods sold Expenses 57.9 20.9 613 245 65.6 26.9 Calculate the net income as a percent of sales for each year. (Round answers to 1 decimal place, eg. 12.5%) 2020 2019 2018 Net income % % Did Palau's net income as a percent of sales increase, decrease or remain unchanged over the 3-year period? e Textbook and Media