4 points ABC Corp issues 4% coupon bonds for par value today. These bonds make semi-annual coupon payments and mature in 20 years. You buy one of these bonds for exactly $1,000. You hold the bond for 6 months, collect the coupon payment, and then sell the bond immediately therafter. If the bond's yield-to-maturity is 7.7% when you sell it, what is your percentage return (not annualized) over this 6-month holding period? Enter your answer as a percentage and show 2 decimal places. For example, if your answer is .0650, enter 6.50