Please show step by step calculations on a regular calculator or financial calculator thank you

Your firm is contemplating the purchase of a new $1, 049,000 computer-based order entry system. The system will be depreciated straight-line to zero over its three-year life. It will be worth $156, 300 at the end of that time. You will save $423, 500 before taxes per year in order processing costs and you will be able to reduce working capital by $115, 764 (this is a one-time reduction). The net working capital will return to its original level when the project ends. The tax rate is 35 percent. What is the internal rate of return for this three-year project? 18.21 percent 12.74 percent 13.58 percent 13.49 percent 11.78 percent