What is the future value of $24,000 at the end of 5 periods at 8% compounded interest? (Round answer to O decimal places, e.g. 458,581.) Future value $ What is the future value of 15 periodic payments of $1,000 each made at the beginning of each period and compounded at 11%? (Round answer to O decimal places, e.g. 458,581.) Future value $ Kingbird Inc. has completed the purchase of new Surface computers. The fair value of the equipment is $493,625. The purchase agreement specifies an immediate down payment of $100,000 and semiannual payments of $58,464 beginning at the end of 6 months for 4 years. What is the interest rate, to the nearest percent, used in discounting this purchase transaction? Interest rate % semiannually