The comparative financial statements prepared at December 31, 2012, for Prince Company showed the following summarized data:

	2012			2011
Income Statement
Sales revenue	$	190,300	*	$	167,900
Cost of goods sold		113,200			101,500
Gross profit		77,100			66,400
Operating expenses and interest expense		56,400			53,400
Pretax income		20,700			13,000
Income tax		6,210			3,900
Net income	$	14,490		$	9,100
Balance Sheet
Cash	$	5,200		$	6,400
Accounts receivable (net)		14,300			16,600
Inventory		41,600			33,600
Operational assets (net)		46,500			36,400
	$	107,600		$	93,000
Current liabilities (no interest)	$	15,800		$	16,800
Long-term liabilities (9% interest)		44,200			44,200
Common stock (par $5)		28,100			28,100
Retained earnings		19,500			3,900
	$	107,600		$	93,000

*One-third was credit sales. By what amount did working capital change?