L3! SETA Briet Exercise 12-21 Payback Period Payson Manufacturi ng is considering an investment in a new automated manufacturing sys new system requires an investment of $1,200,000 and either has (a) even cash lows 0.000 per year or (b) the following expected annual cash fows: $150,000, $150,000, tem. The $400,000, S$400,000, and $100,000 Required Calculate the payback period for cach case