Answer:
$9,915
Explanation:
The computation of the net working capital for 2015 is shown below:
= Current asset - current liabilities
where,
Current asset = Cash + inventory + account receivable
            = $3,671 + 3,968 + $4,601
            = $12,240
Current liabilities = Account payable
              = $2,325
Now put these values to the above formula
So, the value would be equal to
= $12,240 - $2,325
= $9,915