Consider a retail firm with a net profit margin of $3\mathrm{.}28\%,$ a total asset turnover of $1\mathrm{.}75,$ total assets of $$45\mathrm{.}2$ million, and a book value of equity of $$17\mathrm{.}8$ million.

a$.$ What is the firm's current ROE?

b$.$ If the firm increased its net profit margin to $4\mathrm{.}12\%,$ what would be its ROE?

c$.$ If$,$ in addition, the firm increased its revenues by $20\%($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.$)$