Compute The ROI, margin, and turnover for Years 1,2, and 3. Suppose that in Year 4 the sales and operating income were achieved as expected, but inventories remained at the same level as in Year 3. Compute the expected ROI, margin, and turnover. Explain whj.r The ROI increased over The Year 3 level. Suppose That the sales and net operating income for Year 4 remained the same as in Year 3 but inventor},T reductions were achieved as projected. Compute the ROI, margin, and turnover. Explain why the ROI exceeded the Year 3 level. Assume that all expectations for Year 4 were realized. Compute the expected ROI, margin, and turnover. Explain whj.r The ROI increased over the Year 3 level