Refer to the original data. Assume that sales in Chicago increase by $50,000 next year and that sales in Minneapolis remain unchanged. Assume no change in fixed costs. a. Prepare a new segmented income statement for the company using the above format. Show both amounts and percentages. b. Observe from the income statement you have prepared that the contribution margin ratio for Chicago has remained unchanged at 70% (the same as in the above data) but that the seg- ment margin ratio has changed. How do you explain the change in the segment margin ratio