Added static method to AuctionInfo to calculate the previous bid from another known bid value.
Added static method to AuctionInfo to calculate the previous bid from another known bid value.

tringler/FIFA-Ultimate-Team-Toolkit,hfielding/FIFA-Ultimate-Team-Toolkit,lorenzh/FIFA-Ultimate-Team-Toolkit,kauefelipe/FIFA-Ultimate-Team-Toolkit,trydis/FIFA-Ultimate-Team-Toolkit,jonnydowe/FIFA-Ultimate-Team-2015-Toolkit,trydis/FIFA-Ultimate-Team-2015-Toolkit,CoverJ/FIFA-Ultimate-Team-Toolkit