I need help correcting requirement 2 please.

Water City is considering purchasing a water park in Atlanta, Georgia, for exist1, 870,000. The new facility will generate annual net cash inflows of exist483,000 for eight years. Engineers estimate that the new facilities will remain useful for eight years and have no residual value. The company uses straight-line depreciation, and its stockholders demand an annual return of 10% on investments of this nature. Requirements 1. Compute the payback, the ARR, the NPV, the IRR, and the profitability index of this investment. 2. Recommend whether the company should invest in this project. Requirement 1. Compute the payback, the ARR, the NPV, the IRR, and the profitability index of this investment. First, determine the formula and calculate payback. (, X.X.) Next, determine the formula and calculate the accounting rate of return (ARR). (Round the percentage to the nearest tenth percent, X.X%.) Calculate the net present value (NPV). (Enter any factor amounts to three decimal places, X.XXX.) The IRR (internal rate of return) is between 18-20% Finally, determine the formula and calculate the profitability index. (, X.XX.) Requirement 2. Recommend whether the company should invest in this project. Recommendation: Water City should invest in the project because the payback period is greater than the operating life, the NPV is negative, the profitability index is less than one, and the ARR and IRR are greater than the company's required rate of return