How do I solve this on a BA II plus. I am confused at to what I put in the cash flows. Thanks

The Lunch Counter is expanding and expects operating cash flows of $32,500 a year for seven years as a result. This expansion requires $28,000 in new fixed assets. These assets will be worthless at the end of the project. In addition, the project requires $2,800 of net working capital throughout the life of the project. What is the net present value of this expansion project at a required rate of return of 14%