Jasmine Manufacturing wishes to maintain a sustainable growth rate of $10$ percent a year, a debt$-$equity ratio of $47,$ and a dividend payout ratio of $29$ percent. The ratio of total assets to sales is constant at $1\mathrm{.}28.$ What profit margin must the firm achieve?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

Profit margin

$\%$