Project A has cash flows of $50,000, $49,400, $27,200, and $24,500 for Years 0 to 3, respectively. Project B has an initial cost of $50,000 and an annual cash inflow of $18,500 for four years. These are mutually exclusive projects. What is the crossover rate? Can someone show how to do this without an excel sheet? I need to know how to break down the problem to really understand it.