Answer:
WACC of division 2 - WACC of division 1 = 1.9136%
Explanation:
Firstly, when we adjust beta of firm (unlevered beta) for financial leverage, we wil have equity beta (levered beta). Equity beta will be calculated as below:
Levered beta = Unlevered beta x [1 + (1 - Tax rate) x (Debt/Equity)]
Putting relevant number together, we have:
Levered beta of division 1 = 1.2 x [1 + (1 - 40%) x 0.25] = 1.38.
Levered beta of division 2 = 1.46 x [1 + (1 - 40%) x 0.25] = 1.679.
Next, we will calculated cost of equity for each division using capital asset pricing model:
Cost of equity = Risk-free rate + Beta x (Expected market return - Risk-free rate)
Putting relevant number together, we have:
Cost of equity of division 1 = 4% + 1.38 x (12% - 4%) = 15.04%.
Cost of equity of division 2 = 4% + 1.679 x (12% - 4%) = 17.432%.
Finally we will calulate WACC of each divsion as below:
WACC = After tax cost of debt x (Debt/Asset) + Cost of equity x (Equity/Asset)
Putting all the numbers together, we have:
WACC of division 1 = 6% x (1 - 40%) x 20% + 15.04% x 80% = 12.752%.
WACC of division 2 = 6% x (1 - 40%) x 20% + 17.432% x 80% = 14.6656%.
So, WACC of division 2 - WACC of division 1 = 1.9136%.