Glad to hear you got it from Topper's suggestion. Pl dismiss the earlier
thought. It wasn't quite relevant here.
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
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"sahafi" wrote in message
...
Thanks Max for the reply, but i'm not sure how would that automate the
process. Is that mean I have to change the range each period? Because the
data comes in for the entire year (13 period), and I only needed to sum
what
I need according to my current period.
Toppers example will do the job for now.

Thanks.