Working capital requirements: There will be an initial working capital requirement of $100,000 just to get production started. For each year, the total investment in net working capital will be equal to 10% of the dollar value of sales for that year. Thus, the investment in working capital will increase during years 1 through 3, then decrease in year 4. Finally, all working capital is liquidated at the termination of the project at the end of year 5.
Depreciation method: Straight-line over 5 years assuming the plant and equipment have no salvage value after 5 years.