Board Thread:General Discussion/@comment-6268337-20160830194642/@comment-25065135-20160906174452

i think, it's based on average of {1,2,3}. for example: customer "A" has one vote  1 , two votes  2 , and three votes  3 , it's (1+2+2+3+3+3)/5=2.8; customer "B" has three votes  1 , no votes  2  and  3 , it's (1+1+1)/3=1; customer "C" has three votes  3  and no votes  1  and  2 , it's (3+3+3)/3=3

so it's:
 * 1) B (1)
 * 2) A (2.8)
 * 3) C (3)