e or worsen in 2021 ? of a percent, XX%.) 1. Compute net profit margin ratio for the years ended January 31,2021 and 2020. Did it improve or worsen in 2021? 2. Compute asset turnover for the years ended January 31, 2021 and 2020 . Did it improve or worsen in 2021? 3. Compute return on assets for the years ended January 31,2021 and 2020 . Did it improve or worsen in 2021? Which component-net profit margin ratio or asset turnover-was mostly responsible for the change in the company's return on assets