Wu Systems has the following balance sheet. Assume that all current assets are used in operations. How much net operating working capital does the firm have? Cash Accounts receivable Inventory Current assets Net fixed assets Total assets $100 650 550 $1,300 $ 1,000 $ 2,300 Accounts payable Accruals Notes payable Total current liabilities Long-term bonds Total liabilities Common stock Retained earnings Common equity Total liab. & equity $200 155 545 $900 600 $1,500 300 500 $ 800 $2,300