Calculate average from variable ranges

loggiaaj

Board Regular
Joined
May 8, 2006
Messages
66
I want a formula automatically to find the last 2 months of variable ranges and average the costs: I want to average Dec and Jan only; next month I want to average Jan and Feb so-on

Oct
Nov
Dec
Jan

Second range

Nov
Dec
Jan
 

Excel Facts

What is the last column in Excel?
Excel columns run from A to Z, AA to AZ, AAA to XFD. The last column is XFD.
Given a date, ie today

=MONTH(EDATE(TODAY(),-2))
will provide the month number two months ago

=MONTH(EDATE(TODAY(),-1))
will provide the month number one month ago
 
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