The problem requires us to calculate the weighted average cost of capital (WACC) for a firm, given the target capital structure proportions and the costs of debt, preferred stock, and common equity.

Applied MathematicsFinanceWeighted Average Cost of Capital (WACC)Financial ModelingCost of CapitalBondsStocksYield to MaturityDividend Growth Model
2025/6/17

1. Problem Description

The problem requires us to calculate the weighted average cost of capital (WACC) for a firm, given the target capital structure proportions and the costs of debt, preferred stock, and common equity.

2. Solution Steps

First, calculate the cost of debt.
The firm can sell a 20-year bond with a 1,000parvalueanda91,000 par value and a 9% coupon rate for
9
7

5. The flotation cost is 3% of the face value, which is $0.03 * 1000 = $

3
0.
The net price received by the firm is 975975 - 30 = $
9
4

5. The discount of $25 has already been taken into consideration when calculating the sales price of $

9
7
5.
The before-tax cost of debt (rdr_d) can be approximated using the following formula.
rd=CouponPayment+(FaceValueNetPrice)/Years(FaceValue+NetPrice)/2r_d = \frac{Coupon Payment + (Face Value - Net Price) / Years}{ (Face Value + Net Price) / 2}
rd=90+(1000945)/20(1000+945)/2=90+55/201945/2=90+2.75972.5=92.75972.5=0.09537r_d = \frac{90 + (1000 - 945) / 20} { (1000 + 945) / 2} = \frac{90 + 55 / 20}{1945 / 2} = \frac{90 + 2.75}{972.5} = \frac{92.75}{972.5} = 0.09537
rd=9.537%r_d = 9.537\%
Alternatively, the YTM of debt can be calculated using financial calculator, using PV = -945, FV=1000, PMT=90, N=
2

0. We get the yield of 9.64%, which is more accurate.

The after-tax cost of debt is calculated as:
rd(1TaxRate)=0.09537(10.35)=0.095370.65=0.06199r_d(1 - Tax Rate) = 0.09537 (1 - 0.35) = 0.09537 * 0.65 = 0.06199
The after tax cost of debt is 6.199%. Using the yield of 9.64% we get 9.64% * 0.65 = 6.266%.
Second, calculate the cost of preferred stock.
The firm can issue preferred stock at 68pershare,andthestockwillpayan68 per share, and the stock will pay an 8.00 annual dividend. The cost of issuing and selling the stock is $3 per share.
The net price received is 6868 - 3 = $
6
5.
The cost of preferred stock (rpr_p) is calculated as:
rp=DividendNetPrice=865=0.12308r_p = \frac{Dividend}{Net Price} = \frac{8}{65} = 0.12308
rp=12.308%r_p = 12.308\%
Third, calculate the cost of common equity.
The firm's common stock is currently selling for 45pershare.Thedividendexpectedtobepaidattheendofthecomingyearis45 per share. The dividend expected to be paid at the end of the coming year is 5.
0

7. Its dividend payments have been growing at a constant rate for the last five years. Five years ago, the dividend was $3.

4

5. A new stock issue must be underpriced at $1 per share, and the firm must pay $2 per share in flotation costs.

First, calculate the growth rate (gg) of the dividends.
3.45(1+g)5=5.073.45 (1 + g)^5 = 5.07
(1+g)5=5.07/3.45=1.4696(1 + g)^5 = 5.07 / 3.45 = 1.4696
1+g=(1.4696)1/5=1.07981.081 + g = (1.4696)^{1/5} = 1.0798 \approx 1.08
g=0.0798g = 0.0798 or 7.98%7.98\%
The net price for new shares is 4545 - 1 - 2=2 =
4
2.
The cost of equity (rer_e) is calculated as:
re=D1P0+gr_e = \frac{D_1}{P_0} + g
where D1D_1 is the expected dividend, P0P_0 is the net price of the stock, and gg is the growth rate.
re=5.0742+0.0798=0.12071+0.0798=0.20051r_e = \frac{5.07}{42} + 0.0798 = 0.12071 + 0.0798 = 0.20051
re=20.051%r_e = 20.051\%
Finally, calculate the WACC.
WACC = (wdrd(1TaxRate))+(wprp)+(were)(w_d * r_d * (1 - Tax Rate)) + (w_p * r_p) + (w_e * r_e)
where wdw_d is the weight of debt, wpw_p is the weight of preferred stock, and wew_e is the weight of common equity.
WACC=(0.300.06199)+(0.050.12308)+(0.650.20051)=0.018597+0.006154+0.13033=0.15508WACC = (0.30 * 0.06199) + (0.05 * 0.12308) + (0.65 * 0.20051) = 0.018597 + 0.006154 + 0.13033 = 0.15508
WACC=15.508%WACC = 15.508\%
If we use the yield 9.64% instead of the approximation:
WACC=(0.300.06266)+(0.050.12308)+(0.650.20051)=0.018798+0.006154+0.13033=0.155282WACC = (0.30 * 0.06266) + (0.05 * 0.12308) + (0.65 * 0.20051) = 0.018798 + 0.006154 + 0.13033 = 0.155282
WACC=15.5282%WACC = 15.5282\%

3. Final Answer

The firm's weighted average cost of capital (WACC) is approximately 15.51%.

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