Production costs for IPhone X total $240 per unit. The variable costs are $220 per unit. The fixed costs are $20 per unit. How much will total costs change if production volume increases by 100 iPhones? A) Increase by $24,000 B Increase by $100 C Increase by $22,000 D) Increase by $2,000 5 Points Question 22 The Degree of Operating Leverage is calculated as Contribution Margin + Fixed Cost B Contribution Margin + Operating Income Contribution Margin + Sales Operating Income + Contribution Margin 87 minutes remaining