Winning Bid $$$

New user of this theme. I’ve been reading through posts but have not found an answer so far … I am looking for which custom field maintains the winning bid amount at an auction close. I am thinking it is perhaps the PRICE_BIN field and would appreciate confirmation if this is the case. Otherwise, I would be grateful if someone could point me in the right direction for where this information is stored. I have been asked to sum all winning bids for a text entry on the web site’s home page.

Thank you.