Management is considering using a new component that would increase the unit variable cost by $70. Since the new component would improve the company's product, the marketing manager predicts that monthly sales would increase by 600 units. What should be the overall effect on the company's monthly net operating income of this change if fixed expenses are unaffected

1. Strong Interest Inventory ⇒ 2. measures career and leisure interests, organizing them into four main areas 

2. Kuder Occupational Interest Survey ⇒4. measures personal work interests in ten broad areas

3. Self-Directed Search⇒ 3. classifies people according to six different types to help match interests with a career choice

4. Campbell Interest and Skill Survey⇒1. rates people on seven orientation scales 

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