Kirby Grocery Corporation reported the following information in its comparative financial statements for the fiscal year ended January 31,2021 : Click the icon to view the data.) Read the requirements. Requirement 1. Compute net profit margin ratio (\%) for the years ended January 31, 2021 and 2020. Did it improve or worsen in 2021? Identify the formula, then calculate profit margin for 2021 and 2020. (Round your answers to the nearest hundredth of a percent, XX%.) \begin{tabular}{|l|l|l|l} Ia, then cal & Data table & X & cent, x.xX%). \end{tabular} Requirements 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