I would greatly appreciate some assistance, I've seen a lot of different answers for this.

The Numbers Scenario 1 Annual Benefits Initial Yr1 Yr2 Yr3 Direct 26,000 26,000 26,000 Indirect 2,279,729 2,279,729 2,279,729 Total Benefits per period 2,305,729 2,305,729 2,305,729 Depreciation Schedule Acquisition Yr1 Yr2 Yr3 Software 200,000 40,000 40,000 40,000 Hardware 24,000 5,000 5,000 5,000 Total Depreciation per period 224,000 45,000 45,000 45,000 Expensed Costs Initial Yr1 Yr2 Yr3 Software 30,000 30,000 30,000 Hardware 5,000 5,000 5,000 Consulting 45,000 Personnel 64,000 100,000 100,000 100,000 Training 20,981 Other Total Costs per period 129,981 135,000 135,000 135,000 Assumptions: 15% discount rate Case Questions 1. Calculate the following: a. Annual ROI b. Total Cost of ownership c. Average annual cost of ownership d. Net present value in year 3 e. Payback period