Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table. Bond Coupon Price Quote MaturityFace Value 2 3 4 Rate 5.00% 7.10 6.30 5.90 103.18 5 years $45,000,000 40,000,000 107.4515 1/2 years 50,000,000 65,000,000 112.80 8 years 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