Evaluate the following investment projects using the Payback Period, NPV, and IRR methods. The required rate of return is 8%.

Year	Project A Cash Flows ($)	Project B Cash Flows ($)
0	(50,000)	(60,000)
1	20,000	25,000
2	15,000	20,000
3	10,000	15,000
4	10,000	10,000
5	5,000	10,000

Requirements:

1. Calculate the Payback Period for each project.
2. Determine the NPV for each project.
3. Calculate the IRR for each project.
4. Analyze which project is more financially viable.
5. Evaluate the sensitivity of the NPV to changes in the discount rate.