Given the following information about a CMO: - $36 million of mortgage pool principal assigned to the floater class. $13 million assigned to the inverse floater class. - Floater class coupon rule: LIBOR + 0.2% - Inverse floater class coupon rule: 12.5% - L x LIBOR - LIBOR in the first month is 3%

What is the WAC coupon rate of the underlying collateral pool? Round your answer to three decimal points