Could someone please solve this using excel?

A new project will require the purchase of an asset for $3,000. The project will also require an increase in net working capital of $800 in the initial period which is expected to be recovered in the last year. The after tax salvage of the asset at the end of 4 years is $300. Expected operating cash flows are given in the table below. year OCF 1 900 2 1000 3 1100 4. 1200 Assuming cost of capital is 9%, what is the net present value of this project