Answer:
Plan A = 8.55%
Plan A =8.57%
Plan A =7.9%
Plan A =6.58%
Explanation:
The weighted average cost of capital can be computed by multiplying the Cost of capital (after tax) with the weights. The weighted average cost for four plans are as follows
WACC = Cost of capital x Weights
PLAN A
Weights Cost of capital WACC
Debt 3.0 % 15 % 0.45%
Preferred stock 6.0 10% 0.6%
Common equity 10.0 75% 7.5%
WACC 8.55%
PLAN B
Weights Cost of capital WACC
Debt 3.2 % 25% 0.8%
Preferred stock 6.2 10% 0.62%
Common equity 11.0 65% 7.15%
WACC 8.57%
PLAN C
Weights Cost of capital WACC
Debt 4.0 % 35 % 1.4%
Preferred stock 6.7 10% 0.67%
Common equity 10.6 55% 5.83%
WACC 7.90%
PLAN D
Weights Cost of capital WACC
Debt 7.0 % 45 % 3.15%
Preferred stock 7.6 10% 0.76%
Common equity 12.6 45% 5.67%
WACC 6.58%
