Perform a benefit /cost analysis for the following usage cost projects having the same life time of 7 years and interest rate of 8% by finding the incremental benefits/costs in steps one after the other. You have to write only the final value of incremental benefits/costs in the required answer field. The three projects have the following values, all calculated in AW form:

Project 1 : benefits = $46,090 and cost =$11,764

Project 2 : benefits = $36,346 and cost =$14,103

Project 3 : benefits = $80,402 and cost =$44,432