Tinsley, Incorporated, wishes to maintain a growth rate of $15\mathrm{.}75$ percent per year and a debt$-$equity ratio of $\mathrm{.}85.$ The profit margin is $4\mathrm{.}9$ percent, and total asset turnover is constant at $1\mathrm{.}09.$

What is the dividend payout ratio?

Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

What is the maximum sustainable growth rate for this company?

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

a$.$ Dividend payout ratio $-49\mathrm{.}17\%$

b$.$ Sustainable growth rate $11\mathrm{.}04\%$

a$.$ is wrong. what is the right answer? Please help