Vextra Corporation is considering the purchase of new equipment costing $44,000. The projected annual cash intlow is $12.800. to be received at the end of each year. The machine has a useful litc of 4 ycars and no salvagc valuc. Vextra requires a 12% return on its investments. The present value of an annuity of $1 for dittcrcnt periods tollows: Periods N 12% 0.8929 1.6901 2.4018 3.0373 What is the net present value of the machine