Westerville company reported the following results from last year's operations Sales 1,750,000 variable expenses 520,000 contribution margin 1,230,000 fixed expenses 880,000 net operating income 350,000 average operating assets 875,000 at the beginning of this year, the company has a 200,000 Investment opportunity with the following cost and revenue characteristics sales 320,000 contribution margin ratio 60% of sales fixed expenses 128,000 the company's minimum required rate of return is 20%

1. if the company pursues the Investment opportunity and otherwise performs the same as last year, what turnover will it earn this year? 2. if the company pursues the Investment opportunity and otherwise performs the same as last year, what ROI will it earn this year? 3. what is last year income? 4. what is the residual income of this year's Investment opportunity?