kb. chicago co. is interested in purchasing a machine that would improve its operational efficiency. the cost is $200,000 with an estimated residual value of $20,000 and a useful life of eight years. cash inflows are expected to increase by $40,000 a year. the company's minimum rate of return is 10 percent. the net present value of the project is group of answer choices 120,100 $74,520 $22,727 some other answer 93,400