Pong Incorporated's income statement for the most recent month is given below.

	Total	Store G	Store H
Sales	$162,500	$64,400	$98,100
Variable expenses	57,122	27,692	29,430
Contribution margin	105,378	36,708	68,670
Traceable fixed expenses	71,300	20,400	50,900
Segment margin	34,078	$16,308	$17,770
Common fixed expenses	22,500
Net operating income	$ 11,578

The marketing department believes that a promotional campaign for Store H costing $8,500 will increase the store's sales by $18,000. If the campaign is adopted, overall company net operating income should:

	decrease by $5,400
	decrease by $5,940
	increase by $4,100
	increase by $9,500