4. Ali Corp. had cash and marketable securities worth $400,134 accounts payables worth $2,490,357, inventory of $1,321,500, accounts receivables of $2,188,128, short-term notes payable worth $120,000, other current liabilities of 200,000, and other current assets of $521,800. What is the Ali company's net working capital? (Show your calculations) (1.5 Marks)