The incremental ROR analysis with MARR = 13.5% is used to determine which entertainment project offers the best economic choice. The project 3 to project 2 comparison results in Ai * equal to and the decision should be taken is Machine 1 Machine 2 Machine 3 First cost, $ Annual operating cost, $ Salvage value, $ Life, years -5,000 -3,500 +500 8 -6,500 -3,200 +900 8 -15,000 -1.400 +1,000 8 12.75%, keep project 3 to and eliminate project 2 13.60%, keep project 3 to and eliminate project 2 14.5%, keep project 2 to and eliminate project 3 13.60%, keep project 2 to and eliminate project 3