The following list gives you the amount of assets and liability of National Finance Company Ltd. Calculate the gross working capital and net working capital of the firm. Description Amount (OMR) Cash and Bank Balance 2000 Accounts payable 3000 Marketable securities 1500 Tax payable 1500 Accounts receivable 4000 Notes payable 2000 Inventory 3000 Machinery 15000 Long term debt 20000