Calculate the following based on the provided cash flows for a project:

• Initial investment: $200,000
• Year 1: $25,000
• Year 2: $35,000
• Year 3: $40,000
• Year 4: $50,000
• Year 5: $70,000

Requirements:

1. Payback period.
2. Total cumulative cash flow by the end of year 5.
3. Net cash flow after the payback period.