Answer:
The estimated cost of equity is 10.3%
Step-by-step explanation:
Step 1: Find Levered Beta
The CAPM formula would be used here to find the Levered Beta. CAPM formula is given as under:
Ke = Rf + Beta * (MRP - Rf)
Current Cost of Equity of company is ke and is 15%,
Risk free rate is Rf and is 6%
Market risk premium is 7%
15% = 6% + Beta* (7% - 6%)
Levered Beta = 9
Step 2: Find the Unlevered Beta
As we know that existing Debt to Equity ratio is (30 / 70), we can use the following formula to calculate the unlevered beta:
Unlevered Beta = Levered Beta / (1 + (1-t) * D/E)
Simply by putting values, we have:
Unlevered Beta = 1.2 / (1 + (1 - 40%) * 30/70) = 7.16
Step 3: Calculate levered beta on new debt to equity ratio
Now
New Debt to Equity Ratio is 1 (50 / 50)
As we know that:
Levered Beta = Unlevered Beta * (1 + (1-t) * Debt / Equity)
Levered Beta = 7.16 * (1 - 40%) * 1) = 4.3
Step 4: Use CAPM formula to calculate Cost of equity on new gearing
Using CAPM formula, we have:
Ke = Rf + Beta * (MRP - Rf)
Ke = 6% + 4.3 * 1% = 10.3%