A taxable bond with a coupon rate of 8.00% has a market price of 99.40% of par The bond matures in 20.00 years ans pays semi-annually. Assume an investor has a 38.00% marginal tax rate. The investor would prefer otherwise identical tax-exempt bond if it's yield to maturity was more than % Submit Answer format: Percentage Round fo 2 decimal places (Example 9 24% % sign required Will accept decimal format rounded to 4 decimal places (ex 0 09243)