Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table. Coupon Rate Price Quote Maturity Face Value Bond $45,000,000 40,000,000 50,000,000 65,000,000 5.00% 103.18 5 years 8 years 15 1/2 years 25 years 2 710 112.80 6.30 5.90 107.45 102.75 3 If the corporate tax rate is 22 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 %