Answer:
WACC without taxes = 6.84% (rounding up to two decimals)
WACC with a tax rate of 21%= 6.27% (rounding up two decimals)
Step-by-step explanation:
To calculate WACC we need to know the weight's for equity adn debt:
Equity: 24,000,000 x 13 = 312,000,000
Debt 368,000,000
Value: 680,000,000
Debt weight's 368M/680M = 0.458823529
Equity weight's 312M/680M =0.541176471
Now we have he weights can calculate the WACC
Ke 0.09
Equity weight 0.458823529
Kd 0.05
Debt Weight 0.541176471
t 0 (as this is a pretax, tax is zero)
WACC 6.83529%
then, for b we are asked for a 21% tax rate, everything else remains unchanged:
if t = 21% then:
t 0.21
WACC 6.26706%