Initial cost = $197,000
Total net accounting income over three years = $18,200+$21,800+$22,900 = $62,900
Average annual accounting net income = $62,900/3 = $20,966.67
Accounting rate of return = Average net annual income / Initial cost = 20,966.67/197,000 = 0.106 = 10.6%
Since Accounting net income is lower than the required discount rate, the project is not viable.