You are analyzing the after$-$ tax cost of debt for a firm. You know that the firm's $12$ year maturity, $6\mathrm{.}50$ percent semiannual coupon bonds are selling at a price of $$610$ assuming that these bonds are the only debt outstanding for the firm. what is the after$-$tax cost of debt for this firm if it has a marginal tax rate of $34$ percent? after$-$tax cost of debt $\%?$