HW problem please show work

A new project will cost $460,000. It is expected to generate zero after-tax cash flows for the first 2 years. Cash flows for years 3-5 are expected be $90,000 per year, and cash flows for years 6-9 are expected to be $80,000 per year. Company's discount rate is 12%. Compute NPV for this investment. Should this project be accepted? Why or why not