Could you write out all steps and how to calculate each table please!

Mr. Tony Stark is considering buying a high-precision CNC router to manufacture parts of his armored suit. This machine would fall in the seven-years MACRS category and cost $85,000. Mr. Stark expects to sell the machine for $20,000 after five years of use. While this machine will not generate revenue, it will bring costs down by $250,000 each year and will require $75,000 in labor costs. Assuming Mr. Stark's tax rate is 35%, compute the cash flows over the project life If Stark Industries' MARR is 14%, is this investment acceptable