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 8.50% 106.5 5 years $ 24,000,000 2 7.00 93.9 8 years 34,000,000 3 8.20 105.3 15.5 years 39,000,000 4 8.70 95.1 25 years 54,000,000 If the corporate tax rate is 25 percent, what is the aftertax cost of the companys debt? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.