Compute the NPV for Project M if the appropriate cost of capital is 7 percent. (Negative amount should be indicated by a minus sign. Do not round intermediate calculations and round your final answer to 2 decimal places.) Project M Time: 0 1 2 3 Cash flow: -$3,200 $670 $800 $840 X Answer is complete but not entirely correct. NPV $ 4 $920 465.92 X 5 $420