An enterprise is considering an investment in a new software system that costs $450,000. The system has a 5-year life span and will generate annual cash inflows of $100,000. There is no salvage value at the end of its life. The company's tax rate is 28%. The following are the present value factors for 5 years:

Discount Rate	Cumulative Factors
6%	4.212
8%	3.993
10%	3.791
12%	3.605
14%	3.433

Requirements:

1. Compute the NPV at each discount rate.
2. Find the IRR of the project.
3. Calculate the profitability index.
4. Provide a recommendation on the investment decision based on the financial metrics.