Debt Trash Company's noncallable bonds were issued several years ago and now have 17 years to maturity. These bonds have a 8.5% annual coupon, paid annually, selling at a price of $1,045.61 per bond with a par value of $1,000. To raise more capital, the company will issue new 20-year bonds with a flotation cost of 6%. If the firm's tax rate is 40%, what is the yield to maturity of the existing bonds and what is the component cost of debt for use in the WACC calculation?