Rousey, Inc., had a cash flow to creditors of $16,875 and a cash flow to stockholders of $7,433 over the past year. The company also had net fixed assets of $49,655 at the beginning of the year and $57,070 at the end of the year. Additionally, the company had a depreciation expense of $12,204 and an operating cash flow of $51,002. What was the change in net working capital during the year?