Dear All

I am trying to add a specific range of data
Column A include a code
Column B-X include actual data
Culumn X- AI include budget figures.
Also in cell A1i have the number of the month

For example the month is 3 (March)
I want in AK to create a SUMIF where the formula will sum columnsX+Y+Z
If month goes 4 then should calculate
X+Y+Z+AA
and so on

Any good ideas?

Thanks in advance Manos