Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the table below. Bond 1234 Coupon Rate 8.90% 6.90 8.60 9.10 Price Quote 106.4 94.0 105.2 95.0 Maturity 3 years 6 years 13.5 years Face Value $ 23,000,000 35,000,000 40,000,000 23 years 55,000,000 If the corporate tax rate is 24 percent, what is the aftertax cost of the company's debt? Note: 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 %