Zeeb Corporation produces and sells a single product. Data concerning that product appear below:

	Per Unit		Percent of Sales
Selling price	$	220	100%
Variable expenses		66	30%
Contribution margin	$	154	70%

Fixed expenses are $362,000 per month. The company is currently selling 5,700 units per month.

The marketing manager believes that a $19,000 increase in the monthly advertising budget would result in a 130 unit increase in monthly sales.

Required:

What should be the overall effect on the company's monthly net operating income of this change? (Negative amount should be indicated by a minus sign. Omit the "$" sign in your response.)

Change in net operating income

$