Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table. Bond -NM Coupon Rate 5.8% 7.4 7.3 6.6 Price Quote Maturity 105.56 6 years 114.32 9 years 112.87 16.5 years 102.11 26 years Face Value $52,000,000 47,000,000 67,000,000 74,000,000 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