Help Save & Exit Submit Rock Inc. has three divisions, Granite, Lime and Nina. All fixed costs are unavoidable. Following is the income statement for the previous year: Sales Variable costs Contribution Margin Fixed Costs (allocated) Profit Margin Granite $ 513,000 191,000 322,000 271,000 $ 51,000 Time Nina $273,500 $227.000 124,800 100,100 148,700 126,900 158,250 110,750 $ (9,550) $ 16,150 Total $1.013.500 415,900 597,600 540,000 $ 57,600 a. What would Rock's profit margin be if the Lime division were dropped? - What would Rock's profit margin be if the Nina division