ii. A 10% increase in contribution margin, but holding revenue constant. Revenue: No change $ 0 Variable Costs: Decrease by $382900 Fixed Costs: No change $ 0 Contribution Margin: Increase by $382900 Budgeted Operating Income: Increase by $382900 iii. A 19% increase in fixed costs and 13% increase in units sold. Revenue: Variable Costs: Fixed Costs: Increase by $67298 Increase by +A $ Increase by +A Contribution Margin: Increase by Budgeted Operating Income: Decrease by > +A +A X 13