Hi All

I'm trying to create a formula to use in a monthly report to calculate
YTD sum for PL, and average for Balance sheet.

For P/L I can use the following:

SUM(AZ28:OFFSET(BL28,0,-(12-$C$2)-1),)

Where C2 is the month number.

However with the following figures:

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
487 450 405 428 492 443 415 550 357 416 416 442

and the formula:
AVERAGE(AZ6:OFFSET(BL6,0,-(12-$C$2)-1),)

Instead of getting an average of 450, I get 405, and I'm struggling to
resolve this.

Can anyone point out what I'm doing wrong?

Cheers
Ins