The crossover rate is the rate at which the NPVs of the projects are the same.
Corporate Finance MCQ - Corporate Finance Section 2
The vertical axis represents zero discount rate. The point at which the NPV
profile crosses the vertical axis is simply the sum of undiscounted cash flows.
Wd = (D/E) / (1 + D/E) = 1 / (1 + 1) = 50%
We = 1 - Wd = 50%
WACC = Wd Rd (1 - t) + We Re
WACC = 50% * 9% * (1 - 30%) + 50% * 12% = 9.15%
Wd = (D/E) / (1 + D/E) = 0.5 / (1 + 0.5) = 33.3%
We = 1 - Wd = 66.7%
WACC = Wd Rd (1 - t) + We Re
WACC = 33.3%* 12%* (1 - 30%) + 66.7% * 19% = 15.47%.
Wd = (D/E) / (1 + D/E) = 0.5 / (1 + 0.5) = 33.3%
We = 1 - Wd = 66.7%
WACC = Wd Rd (1 - t) + We Re
WACC = 33.3% * 11% * (1 - 35%) + 66.7% * 15% = 12.39%

