Answer:
Change is net working capital is -$18,500(use of cash)
Explanation:
Due to the expansion inventory would increase by $4,500 ($9,500-$5,000)
Accounts receivable would also increase by $4,000 over its previous amount.
Accounts payable would reduce by $10,000 as compared to previous balance of accounts payable
The change in net working capital=$4,500+$4,000+$10,000=$18,500
This is a use of cash not a source of cash inflow