Thornbrough Corporation produces and sells a single product with the following characteristics: Percent of Per Unit $220 Sales Selling price Variable expenses Contribution margin 100? 20? 80? 02:28:02 $176 The company is currently selling 7,000 units per month. Fixed expenses are $901,000 per month Management is considering using a new component that would increase the unit vart by $11. Since the new component would increase the features of the company's product, the marketing manager predicts that monthly sales would increase by 500 units. What should be the overall effect on the company's monthly net operating income of this change? Multiple Choice increase of $82.500 decrease of $5,500 decrease of $82,500 increase of $5,500