what is the net working captial gain in $

Sunland Electronics reported the following information at its annual meeting: The company had cash and marketable securities worth $1,235,700, accounts payable worth $4,159,700, inventory of $7,121,700, accounts receivable of $3,488.700, short-term notes payable worth $1,151,700, and other current assets of $122,100. What is the company's net working capital