Large Industries bonds sell for $1,104.10. The bond life is 15 years, and the yield to maturity is 6.4%. What...

Large Industries bonds sell for $1,104.10. The bond life is 15 years, and the yield to maturity is 6.4%. What must be the coupon rate on the bonds? (Do not round intermediate calculations. Enter your response as a percentage rounded to one decimal place.)