Cost of Retained I Eamlnge 9-13. Amy Jolly is the treasurer of her company. She expects the company will grout.r at 4 percent in the future, and debt securities [YTM = 14%, tax rate = 30%) will always be a cheaper option to nance the growth. The current market price per share of its common stock is $39, and the expected dividend in one year is $1.50 per share. Calculate the cost of the company's retained earnings and check if Amy's assumption is correct