D | Question 6 6 pts Halliburton is in the oil and gas equipment and services industry. Suppose that Halliburton managers are considering a new oilfield servicing operation that would cost $500 million. Its book debt-to-equity ratio would increase only slightly, so its credit ratings would not change. Halliburton managers consider raising funds for the proyect by selling $500 million in new bonds with a maturity of 10 years. The managers ge that the proposed project would have about the same nsk as Halliburton's existing operations Haliburton has an outstanding bond that matures in about 10 years and has a yield to maturity of 8579% Treasury bonds with 10 years to maturity have yelds of 2041%. Estimate the required annual rate of return on Haliburton's new bond that the company issues to fund the new proect. Do not round at intermediate steps in your calculation. Round your answer to 3 decimal places. Do not type the % symbol