White, Inc.'s comparative income statement follows. The 2017 data are given as needed. (Click the icon to view the data.) Read the requirements. Requirement 1. Calculate the profit margin ratio for 2019 and 2018. Begin by selecting the formula to calculate the profit margin ratio. Profit margin ratio Now, calculate the profit margin ratio for 2019 and 2018. (Round your answers to one tenth of a percent, XX%.) Profit margin 2019 2018 ratio % % % Requirement 2. Calculate the rate of return on total assets for 2019 and 2018. Choose from any list or enter any number in the input fields and then continue to the next question.