A firm has a 7-year project with cash flows of -$900 in year 0, $500 in year 1, $300 in year 2, $200 in years 3, 4, and 5. $0 in year 6, and $900 in year 7. All cash flows are year-end. Assume a cost of capital of 10%. Find the NPV of this project: (Show all of your calculations)