Consider a retail firm with a net profit margin of 3.88%, a total asset turnover of 1.87, total assets of $42.2 million, and a book value of equity of $18.6 million. a. What is the firm's current ROE? b. If the firm increased its net profit margin to 4.65%, what would be its ROE? c. If, in addition, the firm increased its revenues by 24% (maintaining this higher profit margin and without changing its assets or 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 4.65%, 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 24% (maintaining this higher proft margin and without changing its assets or liabilities), what would be its ROE? The new ROE would be % (Round to one decimal place.) lew b