Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table Bond Coupon Rate 5.00% 710 6.30 5.90 Price Quote Maturity Face Value $45,000,000 40,000,000 10745 15 1/2 years 50,000,000 65,000,000 103.18 112.80 5 years 8 years 2 3 4 102.75 25 years 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