Capital cost: 164500 Running cost: 32900 Revenue: 51700 Increase in revenue: 1950 Salvage value: 8450 Assume comparing your alternative to the next two alternatives, use MARR =15% : 1. Compare the three alternatives using PW methods 2. Using incremental methods compare the three alternatives using IRR 3. Assuming your alternative is 6 year, complete your calculation using study period of 6 years and 12 years