Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the table below. Bond Coupon Rate Price Quote Maturity Face Value 1 8.70 % 105.2 7 years $ 22,000,000 2 7.00 95.2 10 years 42,000,000 3 8.40 104.0 17.5 years 47,000,000 4 8.90 105.9 27 years 62,000,000 If the corporate tax rate is 38 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.) Aftertax cost of debt %