> what is the difference between: share holder’s equity and equity, working capital. are they all the same?
No, they’re not all the same.
* Working capital is current assets - current liabilities (net).
* Equity is, um, Assets - Liabilities. Also known as Net Assets and occasionally stockholders’ equity or book value of equity.
The only thing I can think of related to E/P (P/E) requiring WC is a FCFE or OFCF calculation, both of which require you to pull out the change in WC.
HTH