Evaluate the financial impact of a new IT infrastructure upgrade at Google using NPV, IRR, and payback period methods.

Investment Components	Initial Investment ($)	Annual Cash Flows ($)	Project Life (years)	Discount Rate (%)
IT Upgrade	600,000,000	150,000,000	5	7%

Requirements:

Calculate NPV and IRR based on projected cash flows and discount rate.

Determine the payback period for the investment.

Conduct a sensitivity analysis to assess the impact of changes in IT upgrade costs.

Provide recommendations on whether to proceed with the IT infrastructure upgrade.