$($Measuring growth$)$ Thomas, Inc.$\text{'}$s return on equity is $17$ percent and management has plans to retain $24$ percent of earnings for investment in the company.

a$.$ What will be the company's growth rate?

b$.$ How would the growth rate change if management $($i$)$ increased retained earnings to $35$ percent or $($ii$)$ decreased retention to $11$ percent?

a$.$ The company's growth rate will be

$\%.($Round to two decimal places.$)$