Galaxy Interiors income statement shows depreciation of $1,611, sales of $21, 415, interests paid of $1,282 net income of $1,374, and costs of goods sold of $16,408. What is the amount of the noncash expenses?

A firm has $680 in inventory, $2,140 in fixed assets, $210 in accounts receivables, $250 in accounts payable, and $80 in cash. What is the amount of the net working capital ?