Tangshan Mining Company is considering investing in a new mining project. The firm's cost of capital is 12 percent and the project is expected to have an initial after tax cost of $5,000,000. Furthermore, the project is expected to provide after-tax operating cash flows of $250000 in year 1, $230000 in year 2, $220000 in year 3 and ($130000) in year 4? Calcualte Profitbaility Index