Global Water Treatment, Inc. is analyzing a proposed investment that would initially require $$750,000$ of new equipment. This equipment would be depreciated on a straight$-$line basis to a zero balance over the four$-$year life of the project. The estimated salvage value is $$150,000.$ The project requires $$50,000$ initially for net working capital, all of which will be recouped at the end of the project. The projected operating cash flow is $ $265,000$ a year. What is the internal rate of return on this project if the relevant tax rate is $21$ percent? I$\text{'}$m trying to do this in excel please and thank you.