Deep Waters, Inc. is using the internal rate of return (IRR) when evaluating projects. Find the IRR for the companys project. The initial outlay for the project is $397,200. The project will produce the following after-tax cash inflows of Year 1: 144,400 Year 2: 89,500 Year 3: 189,600 Year 4: 172,000 Please show me how to do with excel and what you put in the Guess part. I keep getting NUM error.