I apologize for not posting my formulas.
Age Range = $BY$6:$BY$15000
Criteria = CK6 the label contained is "<=29".
Formula and Result:
=COUNTIF($BY$6:$BY$15000,CK6)= 0
=COUNTIF($BY$6:$BY$15000,"<=29")= 0
=SUM(IF($BY$6:$BY$15000=CK6,1,0)) = 1,756 (correct)
I was also able to modify your...