I know a while back I was trying to sort percentages and they weren't working. That's because the percentages I had to sort were of the format xx.yy%. The parser for percent in tableSorter only handled them if they were of the format xx%. I ended up modifying the parser for percent to handle xx.yy% with as many y's as you wanted.
So it now sorts 80%, 80.1%, 80.00000000000001% etc etc etc. In retrospect, I suppose I could have stripped out the '.' and then sorted it... *shrug*
