Check Selling price Variable expenses Contribution margin Per Unit $ 90 63 $ 27 Percent of Sales 100% 70 - 1 of 2 Fixed expenses are $30,000 per month and the company is selling 2,000 units per month. Book Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $5,000 and monthly sales increase by $9,000? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. erences Req 1A Reg 1B How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $5,000 and monthly sales increase by $9,000? Net operating income decreases by Required information monthly sales increase by $9,000? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. Req 1A Reg 1B Should the advertising budget be increased? Yes No