I have used this formula before with success to get an average - (col A
includes my indicators; col R includes my sales data; col F includes my # of
stores by which the sales data is divided):
=SUMIF($A$5:$A$500,"R:01",$R$5:$R$500)/$F$107

but I changed it to this for a different spreadsheet:
=SUMIF($A$5:$A$500,"BLENDED",$X$5:$X$500)/A9

Why would it work in the 1st instance but not in the 2nd?

thanks in advance! jane