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A tax-exempt municipal bond with a coupon rate of 9.00% has a market price of 99.23% of par. The bond matures in 5.00 years and pays semi-annually. Assume an investor has a 28.00% marginal tax rate. The investor would prefer otherwise identical taxable bond if it's yield to maturity was more than % Answer format: Percentage Round to: 2 decimal places (Example: 9.24\%. 7 sign required. Wil accept decimal format rounded to 4 decimal places (ex: 0.0924))