AE9-14 Calculate the Payback Period [LO 6] The Sunny Valley Wheat Cooperative is considering the construction of a new silo. It will cost $70,000 to construct the silo. Determine the payback period if the expected cash inflows are $20,000 per year. (Enter the final answer to 2 decimal places, e.g. 7.23.) Payback period years___________