Determine the change in net working capital that appears warranted for the following proposed project: Inventory levels will decrease 20% from their current value of $500,000; cash will increase by $25,000; wage accruals will increase by $60,000; accounts receivable because of a new collection system-will increase by only $15,000; accounts payable will increase by $45,000. What happens to net working capital at the end of the project's life?