Hello guys,
I have 2 columns, the first one (we say A1:A100) contains 'W's, 'M's, 'L's, and some 'NA's, the second column (B1:B100) contains figures (stock returns) and also some 'NA's. what I want to do is to calculate the percent rank for each stock under 'W' group, 'M' group, and 'L' group...