Price ranges

Price ranges makes absolutely no sense. I trade players in order to make coins. Buy low sell high etc. I don't make much but it means I can afford a decent team. But who's in charge of changing prices. Toty honourable mentions card was selling between 30000 to 37500 and all of a sudden his price is now locked at min 11500 to 32500.. why? He was selling constantly for 36k. If anything his price needed to be in the 40,000s . If someone can make sense of this change in price range please help me understand it. If something is selling close to the max you usually make the max higher...not drop it lower..I mean why??