Ok i could be remembering things wrongly, maybe the old UI has a cap of 100% as well( to get a over 100% drop in price, the comparison price just have to be with the old pricing b4 price drops and not the current pricing, this way it gives more meaning to people who are looking for cheap deals.) . i havent used the site in 2 weeks, but i am sure you took something useful out, there was a price info beside the % drop/increase. it was pretty useful to see the real value instead of just the %, and we could filter it. hope you add it back, you changed it to average but still find the old one better.
just my 2 cents. good work otherwise.