Problem $3-10$ Sustainable Growth Rate

The Iron River Company has an ROE of $14\mathrm{.}5$ percent and a payout ratio of $40$

percent. What is the company's sustainable growth rate? $($Do not round intermediate

calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,$

$32\mathrm{.}16.)$

Answer is complete but not entirely correct.