Problem 6-22 (Algo) CVP Applications; Contribution Margin Ratio; Break-Even Analysis; Cost Structure [LO6-1, LO6-3, LO6-4, L06-5, LO6-6] Due to erratic sales of its sole product-a high-capacity battery for laptop computers-PEM, Incorporated, has been experiencing financial difficulty for some time. The company's contribution format income statement for the most recent month is given below: Complete this question by entering your answers in the tabs below. The president believes that a $6,900 increase in the monthly advertising budget, combined with an intensified effort by the sales staff, will increase unit sales and the total sales by $85,000 per month. If the president is right, what will be the increase (decrease) in the company's monthly net operating income? (Do not round intermediate calculations.)