] K-Tek Inc. has bonds on the market with 18 years to maturity, a YTM of 10.213% , a par value of $1,000 , and a current price of $916.96 . The bonds make quarterly coupon payments. What must the annual coupon rate be on these bonds? $ (to nearest $0.01) $ (to nearest $0.01) % (to nearest 0.001%)