Hank made payments of $178 per month at the end of each month for 30 years to purchase a piece of property. He promptly sold it for $171,462.

Hank made payments of $178 per month at the end of each month for 30 years to purchase a piece of property.  He promptly sold it for $171,462.  What annual interest rate would he need to earn on an ordinary annuity for a comparable rate of return