hi there. your question is pretty confusing. you mentioned BG8:BH8 but actually showed a formula eg of AA8:AO8. so let me just use the latter. there are 15 cells in AA8:AO8. so do you mean that if
all of them are values less than 50, you want to return 1? you could use:
=--(COUNTIF(AA1:AO1,"<50")=15)
or
=--(COUNTIF(AA1:AO1,"<50")=COLUMNS(AA1:AO1))
to show 1 if just any of them is less than 50:
=--(COUNTIF(AA1:AO1,"<50")>0)
if you want to count the number of zeroes like Amit has interpreted, these are the two alternative formulas from his:
=--(COUNTIF(BG1:BH100,0)<50)
=IF(COUNTIF(BG1:BH100,0)>50,"",--(COUNTIF(BG1:BH100,0)<50))