Based on the following data, what is the amount of working capital? Accounts payable Accounts receivable Cash Intangible assets Inventory Long-term investments Long-term liabilities Short-term investments Notes payable (short-term) Property, plant, and equipment Prepaid insurance $49920 88920 54600 78000 107640 124800 156000 62400 43680 1045200 1560 $258960 $221520 $288600 $254280