Assume the following ratios are constant:

Total asset turnover $3\mathrm{.}4$

Profit margin $6\mathrm{.}3\%$

Equity multiplier $1\mathrm{.}5$

Payout ratio $30\%$

What is the sustainable growth rate? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$