Hero Manufacturing has 8.5 million shares of common stock outstanding. The current share price is $77 and the book value per share is $6. The company also has two bond issues outstanding. The first bond issue has a face value of $70 million, a coupon rate of 6.6 percent and sells for 108.5 percent of par. The second issue has a face value of $55.3 million, a coupon rate of 7.8 percent and sells for 112.3 percent of par. The first issue matures in 10 years, the second in 28 years. Suppose the companys stock has a beta of 1.4. The risk-free rate is 2.8 percent and the market risk premium is 6.9 percent.

Assume that the overall cost of debt is the weighted average implied by the two outstanding debt issues. Both bonds make semiannual payments. The tax rate is 22 percent. What is the companys WACC? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)