John already has $220,620 in one of his investment accounts that earns 5.4% compounded annually. He has decided to contribute an additional $350 to the investment at the start of each month until he retires in 26 months. a. How much will John have in his investment when he retires? Considering inflows and outflows of cash, enter the appropriate values in the blanks below. Round final dollar answer to 2 decimal places. Mode = N = IY = CY= PV = PMT= PY = FV = N N b. What total additional contribution did John make to his investment over the 26 months?