Sandusky River's Inc. has total debt of $$171,000,$ total equity of $$396,000,$ annual sales of $$813,200,$ and a profit margin of $7\mathrm{.}78\%.$ What is their return on assets $($ROA$)?$

Multiple Choice

$9\mathrm{.}72\%$

$6\mathrm{.}48\%$

$10\mathrm{.}04\%$

$11\mathrm{.}16\%$

$8\mathrm{.}29\%$