Answer:
3.44%
Step-by-step explanation:
For computing the after tax cost of debt we need to apply the RATE formula i.e shown in the attachment below:
Provided that,
Present value = $1,061
Future value or Face value = $1,000
PMT = 1,000 × 6.1% ÷ 2 = $30.5
NPER = 25 years × 2 = 50 years
The formula is shown below:
= Rate(NPER;PMT;-PV;FV;type)
The present value come in negative
So, after applying the above formula,
1. The pretax cost of debt is 2.82% × 2 = 5.64%
2. And, the after tax cost of debt would be
= Pretax cost of debt × ( 1 - tax rate)
= 5.64% × ( 1 - 0.39)
= 3.44%