Company X is considering a four-year project to improve its production efficiency. Building a new plant for $800,000 is estimated to result in $300,000 sales and $50,000 total costs annually. The plant will be depreciated equally to zero per year and will have an salvage value of $80,000. It also requires an initial investment in net working capital for $20,000. Tax rate is 20% and the discount rate is 15%. Please fill in the following table based on information given. Should the company undertake the project?

Could you walk me through your calculation with the table below: