If you're calculating change in working capital for the purpose of a DCF or
Why is cash not included in NWC?
This is because cash, especially in large amounts, is invested by firms in treasury bills, short term government securities or commercial paper. ... Unlike inventory, accounts receivable and other current assets, cash then earns a fair return and should not be included in measures of working capital.
What is included in change in net working capital?
Change in Net Working Capital is calculated as a difference between Current Assets and Current Liabilities. So higher the current assets or lower the current liabilities, higher will be the net working capital.