Answer:
5.75%
Step-by-step explanation:
Firstly, we need to find the yield-to-maturity (YTM) of current outstanding bond as below:
Bond market price = Coupon/(1 + YTM) + Coupon/(1 + YTM)^2 + Coupon/(1 + YTM)^3 +...+ Coupon/(1 + YTM)^20 + Face value/(1 + YTM)^20, or:
1,382.73 = 130/(1 + YTM) + 130/(1 + YTM)^2 + 130/(1 + YTM)^3 +...+ 130/(1 + YTM)^20 + 1,000/(1 + YTM)^20
Solve the equation, we get YTM = 8.85%.
So, if he company wants to issue new debt, its after-tax cost of debt is 8.85% x (1 - 35%) = 5.75%