Jarett & Sons' common stock currently trades at $$28\mathrm{.}00$ a share. It is expected to pay an annual dividend of $$1\mathrm{.}50$ a share at the end of the year $),$ and the constant growth rate is $7\%$ a year.

a$.$ What is the company's cost of common equity if all of its equity comes from retained earnings? Do not round intermediate calculations. Round your answer to two decimal places.

$\%$

b$.$ If the company issued new stock, it would incur a $12\%$ flotation cost. What would be the cost of equity from new stock? Do not round intermediate calculations. Round your answer to two decimal places.