Answer:
The answer is $668,000
Step-by-step explanation:
Net working capital = current asset - current liability.
Under current asset, we have Cash and marketable securities($610,000) Accounts receivable($810,000) Inventory($510,000)
And under current liability, we have
Accrued wages and taxes($51,000) Accounts payable($201,000), Notes payable($1,010,000)
Current asset = $610,000+$510,000+$810,000 = $1,930,000
Current liability = $51,000+$201,000+$1,010,000=$1,262,000
Therefore, net working capital =$1,930,000 - $1,262,000
=$668,000