i got the first three right, but the last year keeps being wrong and that means i cant get the NPV. Please help

Problem 6-4 Calculating Project Cash Flow from Assets Esfandairi Enterprises is considering a new three-year expansion project that requires an initial fixed asset investment of $2.18 million. The fixed asset will be depreciated straightline to zero over its three-year tax life, after which time it will be worthless. The project is estimated to generate $1.645 million in annual sales, with costs of $610,000. The project requires an initial investment in net working capital of $250,000 and the fixed asset will have a market value of $180,000 at the end of the project. a. If the tax rate is 21 percent, what is the project's Year 0 net cash flow? Year 1 ? Year 2? Year 3 ? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers in dollars, not millions of dollars, eg41,234,567.) b. If the required return is 12 percent, what is the project's NPV? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, rounded to the nearest whole number, e.g., 1,234,567.)