Please show steps, I am having a difficult time understanding this.

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 4 5 Cash flow: -$1,400 $430 $560 $600 $680 $180