Answer:
The Weighted Average cost of capital measures the cost to the company of its current capital structure by using the weights of the various capital measures. WACC usually uses market values so;
Total amount = Debt + Preferred stock + common equity
= 100 million + 20 million + ( 50 * 6 million)
= $420 million
Proportions.
Debt
= 100/420
= 24%
Preferred Stock
= 20/420
= 5%
Common Equity
= 300/420
= 71%