Wu Systems has the following balance sheet. How much net operating working capital does the firm have?

Cash	$ 100	Accounts payable	$ 200
Accounts receivable	650	Accruals	350
Inventory	550	Notes payable	350
Current assets	$1,300	Current liabilities	$ 900
Net fixed assets	1,000	Long-term debt	600
		Common equity	300
		Retained earnings	500
Total assets	$2,300	Total liab. & equity	$2,300

	a.	$750
	b.	$675
	c.	$825
	d.	$908
	e.	$998