A firm is considering a project that requires an initial investment of capital by issuing $$538$ of debt at a before$-$tax cost of $9\mathrm{.}6\%,$$$696$ of preferred stock at a cost of $10\mathrm{.}7\%$ and $$394$ of equity at a cost of $13\mathrm{.}5\%.$ The firm faces a tax rate of $40\%.$ What will be the firm's weight on debt?