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

	Total	Store G	Store H
Sales	$160,400	$62,200	$98,200
Variable expenses	50,052	25,502	24,550
Contribution margin	110,348	36,698	73,650
Traceable fixed expenses	69,300	20,800	48,500
Segment margin	41,048	$15,898	$25,150
Common fixed expenses	24,400
Net operating income	$ 16,648

If Store G sales increase by $47,700 with no change in fixed costs, the overall company net operating income should:

increase by $28,143

increase by $32,913

increase by $4,770

increase by $9,540