Bubba buys a 5% municipal bond maturing in 15 years that is trading at a...

6.49%. Divide the discount from par value of $150 ($1,000 - $850) by the number of years to maturity (15) to determine the annual discount. Add the result of $10 to the annual interest ($50) to determine the total annual return. Divide the result of $60 by the average of the current price (85) and par (100). The result is 60 divided by 92.5, which equals 6.49%.