What is the yield-to-maturity of a bond with a coupon rate of 9.8%, par value of $2000, 8 years until maturity, and a value of $987.52 if coupons are paid annually with the next one due in one year?(Round the value to 100th decimal and Please enter the value only without converting it to a decimal format. If the answer is 8.55%, enter 8.55 and enter the positive value)