Cbeck0,
Ashish assumed your column contained y's to represent
yes's, If that's not true you need to change his formula
=COUNTIF(A1:A6,"y")/COUNTA(A1:A6)
counts cells containing y's (only "y" nothing else)
=COUNTIF(A1:A6,"yes")/COUNTA(A1:A6)
counts cells containing yes's (only "yes" nothing else)
=COUNTIF(A1:A6,"y*")/COUNTA(A1:A6)
counts cells starting with y's (anything starting with y)
Dan E