You are evaluating the balance sheet for Goodman's Bees Corporation. From the balance sheet you find the following balances: cash and marketable securities = $950,000, accounts receivable = $1,800,000, inventory = $2,300,000, accrued wages and taxes = $590,000, accounts payable = $890,000, and notes payable = $690,000. Calculate Goodman Bees' net working capital.