Answer:
a) 10.72%
b) 13.86%
Explanation:
Requirement a)
We know,
WACC = We*Ke + Wd*Kd (1 -T)
Here, We = Weights of equity
Wd = Weights of debt
Ke = Cost of equity
Kd (1 -T) = Cost of debt after tax
To find the We, Wd, we have to calculate the total value of the firm. Therefore,
Equity $67,700,000,000
Debt $697,000,000
Total $68,397,000,000
Weights of Equity (We) = $67,700,000,000/$68,397,000,000 = 0.9898
Weights of Debt (Wd) = $697,000,000/$68,397,000,000 = 0.0102
To find the cost of equity (Ke), we have to use Capital pricing model (CAPM), Ke = Rf + (Rm - Rf)* B
Ke = 4.3% + 5.6%*1.16 = 10.796%
Now, putting all the values in WACC formula, we get
WACC for the computer sales division
= (0.9898*10.796%) + (0.0102*5.7%*(1-0.40)) = 10.72%
Requirement b)
Since we have to find a specific division's WACC, therefore, we have to calculate it from the overall company's WACC.
WACC for overall company = (WACC of computer sales division x % of computer sales division) + (WACC of software division x % of software division)
Since, the value of sales division is 37%, the software division's value is = (100% - 37%) = 63%
12.7% = (10.72%*37%) + (WACC of software division x 63%)
12.7% = 3.9664% + (WACC of software division x 63%)
(WACC of software division x 63%) = 8.7336%
WACC of software division = 8.7336%/63% = 13.86%