Does anybody has suggestion how to calculate grand total sum in crosstab only for month where there are data for realisation. This is relation between plan and realisation.
The problem is that for grand total I need calculate sum only from month 1 to 9.
So now BIRT calculate sum(1-9) and sum(1-12) for realisation /plan and I would like to calculate sum(1-9) / sum(1-9)in grand total.
I attach png file for visualisation.
Any help welcome!