(Cost of debt) The Zephyr Corporation is contemplating a new investment to be financed 33 percent from debt. The firm could sell new $1 comma 000 par value bonds at a net price of $965. The coupon interest rate is 9 percent, and the bonds would mature in 19 years. If the company is in a 20 percent tax bracket, what is the after-tax cost of capital to Zephyr for bonds? The after-tax cost of capital to Zephyr for bonds is nothing%. (Round to two decimal places.)