We are using Average Cost, but I"m finding that during the first couple of years using Sage MAS 500 there were a lot of issues with incorrect settings, bad data, user errors, etc.. and this has caused an inflated value with our average cost. Can I somehow change the Average to start from a point in time? Or are we stuck with the bad average? I understand that the average is updated/recalculated by PM a transaction and not by a time period, but does anyone have a fix ? Suggestions?