$($Cost of debt$)$ The Zephyr Corporation is contemplating a new investment to be financed $33$ percent from debt. The firm could sell new $$1,000$ par value bonds at a net price of $$935.$ The coupon interest rate is $8$ percent, and the bonds would mature in $19$ years. If the company is in a $35$ 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 $\%.($Round to two decimal places.$)$

$15.$