An investor purchases a bond for $$921.$ The bond pays $$40$ a year for three years and then matures $($it is redeemed for $$1,000).$ What is the internal rate of return on that investment? Use Appendix B and Appendix D to answer the question. Round your answer to the nearest whole number.

The internal rate of return on a bond is

$\%.$

This return can be also called as

$-$Select$-$

$.$