Sketch the NPV profiles for X and Y over a range of discount rates from zero to 25 percent. What is the crossover rate for these two projects? LO 3 12. Problems with IRR. Howell Petroleum, Inc., is trying to evaluate a generation project with the following cash flows: Year Cash Flow 0 −$31,000,000 1 48,000,000 2 −7,000,000.