User blog comment:Chrismh/Aikatsu Friends Idols Plus and Minus!! ~Round 3~/@comment-3237624-20181226143030/@comment-5138366-20181227005651

I was not trying to say that you should not count the votes that cancel each other. (Maybe I chose a wrong wording...) Just that you could use the suma of the points of all the idols to see if it equals zero.

Like... idol XY is at -2, idol YZ is at +1, and idol XZ is at +1. (-2+1+1=0) Then someone votes XY +1, and XZ -1 bringing the count to (-1+1+0) which equals zero as well.