Volbeat Corporation has bonds on the market with 18 years to maturity, a YTM of 10.9 percent, and a current price of $939. The bonds make semiannual payments. Required: What must the coupon rate be on the bonds? (Do not round intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) pymnt is 100 and bond coast is 1000.