YZA Co. is evaluating a project that requires an initial investment of $200,000. The project is expected to produce the following cash flows:

Year	Cash Flow
1	$50,000
2	$55,000
3	$60,000
4	$65,000
5	$70,000

Requirements:

1. Calculate the payback period.
2. Calculate the NPV with a discount rate of 10%.
3. Calculate the IRR.
4. Determine the profitability index.
5. Evaluate if YZA Co. should proceed with the project.