how to solve it. plz don't use excal

An escalator is being considered for a shopping mall. The escalator costs $192,000, and it will save an estimated $63,000/year in energy costs over a six-year period. The mall's MARR is 25%. The residual value of the escalator will be $20,000. Use the PW method to recommend whether this escalator should be installed. Problem 2 (30 Points) Solve Problem 1 using the FW method, state the recommendation, and compare with the recommendation with the outcome of Problem 1