You are considering opening a bubble tea shop near the new campus and it would cost you $150,000 as an initial investment. After executing your target market study, SWOT and porter 5 forces, you came up with a business plan and expect cash flows as followed: Year 1: $25,000, Year 2: $35,000, Year 3: $45,000, Year 4: $60,000, Year 5: $60,000 What is the payback period of the investment?

if you require a bubble tea shop in to pay back your investment in 4 years, should you invest or not? Should you depend your investment decision on payback period?