Gamgee Company wishes to maintain a growth rate of $11\mathrm{.}4$ percent per year, a debtequity ratio of $1\mathrm{.}5,$ and a dividend payout ratio of $30$ percent. The ratio of total assets to sales is constant at $\mathrm{.}87.$ What profit margin must the firm achieve? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

Profit margin