84=100%
104-84=x% ;x=20*100/84=23,8% trainer lvl 7 is better than lvl 1
But also take in mind that those values arent very accurate, the lowest levels of trainers are least investigated, and older age of players too, cause it was way less data than for young ones, so the error may be way greater.
Last edited by Gajus Julijus Cezaris at 11/29/2011 8:21:20 AM