Consider the following cash flows for an investment project by Pfizer Inc. for the year 2023:

Year	Cash Flow ($)
0	(1,000,000)
1	300,000
2	400,000
3	500,000
4	200,000

Requirements:

1. Calculate the Net Present Value (NPV) if the discount rate is 10%.
2. Determine the Internal Rate of Return (IRR).
3. Compute the Payback Period.
4. Analyze the profitability of the project.
5. Evaluate the impact of a 2% increase in the discount rate on NPV.