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Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the following table Coupon Price QuoteMaturi Bond tyFace Value 6 years $58,000,000 53,000,000 73,000,000 80,000,000 Rate 5.2% 6.8 6.7 6.0 104.96 113.72 2 3 4 9 years 12.27 16.5 years 015 26 years If the corporate tax rate is 23 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