Statement B is not an assumption we make when using the company’s
marginal cost of capital to calculate the NPV of a project.
Corporate Finance MCQ - Corporate Finance Section 2
Bond yield plus risk premium is used to calculate cost of equity not cost of
debt. The other two are approaches to calculate cost of debt.
The debt rating approach depends on knowledge of the company’s rating
and can be compared with yields on bonds in the public market.
Using the financial calculator, determine the yield.
N = 10, PV = -980, PMT = 80/2 = 40, FV = 1000, CPT I/Y = 4.25 semiannual Annual yield = 4.25 * 2 = 8.50 before tax
After-tax cost of debt: 8.50% (1 – 35%) = 5.525 ~ 5.53%.
The appropriate cost is the marginal cost of debt. The before-tax cost of
debt can be calculated by the yield to maturity on a comparable
outstanding. After adjusting for tax, the after-tax cost of debt is 8(1 –
0.35) = 8(0.65) = 5.2%.

