A 20-year, zero-coupon bond was recently being quoted at 29.853% of par. Find the current yield and the promised yield of this issue, given that the bond has a par value of $1,000. Then, using semiannual compounding, determine how much an investor would have to pay for this bond if it were priced to yield 8.230%. The current yield on this bond is %. (Round to the nearest whole percent.) The promised yield of this issue is %. (Round to two decimal places.) Using semiannual compounding, the amount an investor would have to pay for this bond if it were priced to yield 4.115% is $ . (Round to the nearest cent.)