Please solve without Excel!

Wayne Company is considering a long-term investment project called ZIP. ZIP will require an investment of $121,600. It will have a useful life of 4 years and no salvage value. Annual revenues would increase by $79,820, and annual expenses (excluding depreciation) would increase by $40,300. Wayne uses the straight- line method to compute depreciation expense. The company's required rate of return is 12%. Compute the annual rate of return. Annual rate of return 11.5 Determine whether the project is acceptable? Accept-' : the project