A corporate bond with a coupon rate of 8% pays interest semiannually and has a maturity date of May 28, 2029. The trade settles on March 20, 2022. The flat (or clean) price of the bond on the settlement date is 139.99 (in percent of par). What is the yield to maturity? Use Excel's YIELD() function. Dates must be entered with Excel's DATE() function.