Cinqua Terra Incorporated issued 10 -year bonds three years ago with a coupon rate of 8.50% APR. The bonds pay semi-annual coupons, have a face value of $1,000 each and were issued at par value. Cinqua Terra bonds currently trade at $1,078.00. Given your answer to the 6-month return, what is the yield to maturity (as an APR) for holding the bond? Answer format: Percentage Round to: 2 decimal places (Example: 9.24\%, \% sign required. Will accept decimal format rounded to 4 decimal places (ex: 0.0924))