The Evanec Company's next expected dividend, D1, is $2.80; its growth rate is 7%; and its common stock now sells for $40.00. New stock (externa equity) can be sold to net $38.00 per share. a. What is Evanec's cost of retained earnings, rs ? Do not round intermediate calculations. Round your answer to two decimal places. rs=% 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, re ? Do not round intermediate calculations. Round your answer to two decimal places. re=%