Final answer:
The present value of a bond can be calculated using the present value formula. Changes in interest rates can significantly affect the present value of a bond.
Step-by-step explanation:
A bond's present value can be calculated using the present value formula. In this case, the bond initially pays $240 in interest after the first year and $3,240 (principle + interest) at the end of the second year. To calculate its present value, we discount these future cash flows using the discount rate of 8%. The present value of the bond is found to be $3,000.
If the discount rate rises to 11%, we apply the same calculation method to recalculate the present value. The new present value is found to be $2,691.28.
This example demonstrates how changes in interest rates affect the present value of a bond.