Saved Nice Corporation produces and sells a single product. Data concerning that product appear below Percent of UnitSales 100% 30% 74% Per Selling price Variable expenses $270 81 $189 Contribution margin Fixed expenses are $190,000 per month. The company is currently selling 1,400 units per month. Required: nt is considering using a new component that would increase the unit variable cost by $42. Since the new component would improve the company's product, the marketing manager predicts that monthly sales would increase by 300 units be the overall effect on the company's monthly net operating income of this change if fixed expenses are unaffected? (Negative amount should be indicated by a minus sign.) hange in net operating