Hello, I need some help figure out this problem for accounting. Please show all work/calcaulations! I would like to refer back to this for future problems. Thank you!

The management of Unter Corporation, an architectural design firm, is considering an investment with the following cash flow 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.) Complete this question by entering your answers in the tabs below. Would the payback period be affected if the cash inflow in the last year were several times as large