Answer: 11.55%
Explanation:
The Weighted Average Cost of Capital is a measure of how much on average, it costs the company to be financed by Equity (Common and Preferential) and debt by proportionately weighing each class.
The formula is;
WACC = (Cost of Equity * %Equity) + (%Debt * Debt interest (1-Tax Rate)) + (Cost of Preferred Stock * %Preferred Stock)
$10 million is debt and $30 million is common Equity which means that total Capital is $40 million.
Equity percentage is,
= 30/40 * 100
= 75% of capital
Debt is therefore 25%
WACC = (14% * 75%) + ( 25% * 6%(1 - 30%))
= 10.5% + 1.05%
= 11.55%