XYZ Corporation is considering issuing bonds to finance a new investment project. The bonds will have an annual interest expense of $$100,000$ and are expected to save the company $$30,000$ in taxes due to the deductibility of interest expense. Assuming a corporate tax rate of $30\%$ and a required return on equity of $12\%,$ what effect will the tax deductibility of interest expense have on the company's Weighted Average Cost of Capital $($WACC$)$