The Bouchard Company's EPS was $$5\mathrm{.}90$ in $2021,$ up from $$3\mathrm{.}47$ in $2016.$ The company pays out $30\%$ of its earnings as dividends, and its common stock sells for $$34\mathrm{.}00.$

a$.$ Calculate the past growth rate in earnings. $($Hint: This is a $5-$year growth period.$)$ Round your answer to two decimal places.

$\%$

the nearest cent.

$

c$.$ What is Bouchard's cost of retained earnings, $r_s?$ Do not round intermediate calculations. Round your answer to two decimal places.

$\%$