the best manufacturing company is considering a new investment. financial projections for the investment are tabulated here. the corporate tax rate is 40 percent. assume all sales revenue is received in cash, all operating costs and income taxes are paid in cash, and all cash flows occur at the end of the year. all net working capital is recovered at the end of the project. year 0 year 1 year 2 year 3 year 4 investment $ 31,000 sales revenue $ 16,000 $ 16,500 $ 17,000 $ 14,000 operating costs 3,400 3,500 3,600 2,800 depreciation 7,750 7,750 7,750 7,750 net working capital spending 370 420 470 370 ?