How do I find the payback period in years, and would thr payback period be affected if the cash inflow in the last year were several times as large?

Exercise 14-1 (Algo) Payback Method [LO14-1] The management of Unter Corporation, an architectural design firm, is considering an investment with the following cash flows: Required: 1. Determine the payback period of the investment. 2. Would the payback period be affected if the cash inflow in the last year were several times as large? Complete this question by entering your answers in the tabs below. Determine the payback period of the investment. (Round your answer to 1 decimal place.)