show your work please and the formula you used

You are considering the investment project summarized by the cash flows and timeline below. If the discount rate is 5%, what is the net present value of this project? Would you accept or reject the project? Year 0: cash outflow (cost) of $3,500 Year 1: cash inflow of $2,000 Year 2: cash inflow of $1,050 Year 3: cash inflow of $1,400 Year 4: cash inflow of $700