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Sales Operating assets Net operating income Margin Asset Turnover Return on investment 31 Northern Division $ (a) $ (b) $400,000 0.08 (c) 16% Southern Division $250,000 $ (d) $10,000 (e) (f) 10% Required: (1) Solve for the missing data. (2) For Northern Division, if the asset turnover ratio increased by 40%, and the margin decreased by 30%, how would ROI be affected? (3) Compute the residual income for Southern Division if the minimum rate of return is 8%