8-6 Calculating the Present Value of a Consumer Purchase [LO8-2] What would be the net present value of a microwave oven that costs $180 and will save you $70 a year in time and food away from home? Assume an average return on your savings of 4 percent for five years. Use Exhibit 1-D. (Round time value factor to 3 decimal places and answer to 2 decimal places.) Net present value