River Corp's total assets at the end of last year were $$480,000$ and its net income was $$35,000.$ What was its return on total assets?

Question $9$ options:

$6\mathrm{.}82\%$

$6\mathrm{.}28\%$

$5\mathrm{.}73\%$

$7\mathrm{.}3\%$