The Evanec Company's next expected dividend, $D_1,$ is $$3\mathrm{.}66$; its growth rate is $4\%$; and its common stock now sells for $$32\mathrm{.}00.$ New

stock $($external equity$)$ can be sold to net $$30\mathrm{.}40$ per share.

a$.$ What is Evanec's cost of retained earnings, $r_5?$ Do not round intermediate calculations. Round your answer to two decimal places.

$r_s=$

b$.$ What is Evanec's percentage flotation cost, F$?$ Round your answer to two decimal places.

$F=,\%$

c$.$ What is Evanec's cost of new common stock, $r_e?$ Do not round intermediate calculations. Round your answer to two decimal places.

$r_e=,\%$