Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table. Coupon Rate Bond Price Quote Maturity Face Value 105.46 $53,000,000 48,000,000 1 5.7% 5 years 8 years 15.5 years 25 years 2 7.3 114.22 3 7.2 112.77 68,000,000 75,000,000 102.01 6.5 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