Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table Bond Coupon Price Quote Maturity Face Value Rate 105.46 114.22 5.7% 7.3 7.2 6.5 5 years 8 years 112.77 15.5 years 25 years $53,000,000 48,000,000 68,000,000 75,000,000 2 4 102. 01 If the corporate tax rate is 23 percent, what is the aftertax cost of the company's debt? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Cost of debt