This is the formula I'm using to calc the number of days within date range
(aug - sep). this works great.

=SUMIF('Filled Reqs'!$R$2:$R$386,"="&DATE(2007,8,1),'Filled
Reqs'!$T$2:$T$386)-SUMIF('Filled
Reqs'!$R$2:$R$386,"="&DATE(2007,9,1),'Filled Reqs'!$T$2:$T$386)

I need to break this down further by department. when I add the SUMIF
command before the last node('Filled Reqs'!$T$2:$T$386) to be included as an
additional check (for a specific dept within a give month add the total
days), It doesn't work. I don't get the right results, syntax errors,
unbalanced (), I'm getting them all.

Please advise
Thanks,
Ralph