TRX has sales revenue equal to $$150$ million and variable costs of $55\%$ of revenues. Fixed costs and overhead costs are $$35$ million.

Calculate the marketing ROS for TRX$.$

$14\mathrm{.}9\%$

$12\mathrm{.}6\%$

$17\mathrm{.}1\%$

$21\mathrm{.}6\%$