Cash flow to Net Debt Bridge, page-19

Also this from wikipedia;
"An increase in net working capital indicates that the business has either increased current assets (that it has increased its receivables, or other current assets) or has decreased current liabilities—for example has paid off some short-term creditors, or a combination of both."

So in FY17 our NWC increased by 90.9m, the difference between Accounts Receivable minus Payable have increased by 90.9 compared to FY16, which is bad for cashflow.

If Accounts Receivable equals Payable in FY18, there will be $0 NWC in the FY18 Annual report, so cashflow will be improved as compared to this FY17.