I need help with the wrong answers in the attached file.The company currently has outstanding a bond with a $10\mathrm{.}5$ percent coupon rate and another bond with an $8\mathrm{.}1$ percent rate. The firm

has been informed by its investment banker that bonds of equal risk and credit rating are now selling to yield $11\mathrm{.}4$ percent. The

common stock has a price of $$59$ and an expected dividend $(D_1)$ of $$1\mathrm{.}79$ per share. The historical growth pattern $(g)$ for dividends is

as follows:

$$1\mathrm{.}34$

$1\mathrm{.}48$

$1\mathrm{.}63$

$1\mathrm{.}79$

The preferred stock is selling at $$79$ per share and pays a dividend of $$7\mathrm{.}50$ per share. The corporate tax rate is $30$ percent. The

flotation cost is $20$ percent of the selling price for preferred stock. The optimum capital structure for the firm is $20$ percent debt, $10$

percent preferred stock, and $70$ percent common equity in the form of retained earnings.

a$.$ Compute the average historical growth rate.

Note: Do not round Intermedlate calculatlons. Round your answer to the nearest whole percent ond use thils value as $g.$ Input

your answer as a whole percent.

Answer is complete but not entirely correct.

b$.$ Compute the cost of capital for the individual components in the capital structure.

Note: Use the rounded whole percent computed In part a for $g.$ Do not round any other Intermedlate calculations. Input your

answers as a percent rounded to $2$ declmal ploces.

Answer is complete but not entirely correct.

c$.$ Calculate the weighted cost of each source of capital and the weighted average cost of capital.

Note: Do not round Intermedlate colculatlons. Input your answers as a percent rounded to $2$ declmal places.

Answer is complete but not entirely correct.