You purchased a zero coupon bond one year ago for $163.56. The market interest rate is now 12 percent. If the bond had 16 years to maturity when you originally purchased it, what was your total return for the past year? Assume a par value of $1,000 and semiannual compounding. (DO NOT ROUND intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)

Total Return %