Consider a retail firm with a net profit margin of 3.36%, a total asset turnover of 1.74, total assets of $45.5 million, and a book value of equity of $17.9 million a. What is the firm's current ROE? b. If the firm increased its net profit margin to 3.99%, what would be its ROE? c. If, in addition, the firm increased its revenues by 22% (maintaining this higher profit margin and without changing its assets on liabilities), what would be its ROE? a. What is the firm's current ROE? The firm's current ROE is %. (Round to one decimal place.) b. If the firm increased its net profit margin to 3.99%, what would be its ROE? The new ROE would be %. (Round to one decimal place.) c. If in addition, the firm increased its revenues by 22% (maintaining this higher profit margin and without changing its assets or liabilities), what would be its ROE? The new ROE would be % (Round to one decimal place.)