Variable expenses Contribution margin 115 $ 115 50% 50% The company is currently selling 7,000 units per month. Fixed expenses are $581,000 per month. Management is considering using a new component that would increase the unit variable cost by $3. Since the new component would increase the features of the company's product, the marketing manager predicts that monthly sales would increase by 200 units. What should be the overall effect on the company's monthly net operating income of this change? Multiple Choice decrease of $22,400 O decrease of $1,400 increase of $22,400 a increase of $1,400