What would be the net present value of a microwave oven that costs $171 and will save you $80 a year in time and food away from home? Assume an average return on your savings of 4 percent for 5 years. (Hint Calculate the present value of the annual savings, then subtract the cost of the microwave) Use Exhibit :D (Round PVA factor to 3 decimal places and final answer to 2 decimal places.) Nel present value