A cash flow statement represents a company's incoming and outgoing money and a working capital represents the day to day operating liqudity of a company, the net inflows and outflows that a cash flow statement shows decides for the positive working capital or a negative working capital. Positive working capital means that the company is able to pay off its short-term liabilities. Negative working capital means that a company currently is unable to meet its short-term liabilities with its current assets.