Lee Sun's has sales of $$3,250,$ total assets of $$2,950,$ and a profit margin of $4$ percent. The firm has a total debt ratio of $40$ percent. What is the return on equity?

Multiple Choice

$4\mathrm{.}00\%$

$3\mathrm{.}25\%$

$13\mathrm{.}62\%$

$7\mathrm{.}34\%$

$4\mathrm{.}41\%$