Brook's Window Shields Incorporated is trying to calculate its cost of capital for use in a capital budgeting decision. Mr$.$ Glass, the vice president of finance, has given you the following information and has asked you to compute the weighted average cost of capital.

The company currently has outstanding a bond with a $9\mathrm{.}0$ percent coupon rate and another bond with a $6\mathrm{.}0$ percent coupon rate. The firm has been informed by its investment banker that bonds of equal risk and credit rating are now selling to yield $10\mathrm{.}0$ percent.

The common stock has a price of $$94$ and an expected dividend $(D_1)$ of $$6\mathrm{.}40$ per share. The firm's historical growth rate of earnings and dividends per share has been $11\mathrm{.}0$ percent, but security analysts on Wall Street expect this growth to slow to $10$ percent in future years.

The preferred stock is selling at $$90$ per share and carries a dividend of $$5\mathrm{.}60$ per share. The corporate tax rate is $35$ percent. The flotation cost is $2\mathrm{.}8$ percent of the selling price for preferred stock. The optimum capital structure is $30$ percent debt, $15$ percent preferred stock, and $55$ percent common equity in the form of retained earnings.

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

Note: Do not round intermediate calculations. Input your answers as a percent rounded to $2$ decimal places.

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