Answer: 4.10%
Explanation:
Solve for the current rate being used using the RATE function on Excel.
Number of periods = 15
Payment = 1,000 * 5% = 50
Present value = Current market price - floatation costs = 900 - 25 = 875
Future value = 1,000 face value
The result will be:
= 6.31%
If tax is 35%, after-tax cost is:
= 6.31% * (1 - 35%)
= 4.10%