cumulative sum

[#1]

Hi,

i want to do a cumulative sum by month but i don't know how to do this,

i try the rangesum function but it dont work...

The CA field is this expression : Sum({$<[LVR.Date d_expédition]={">=$(vStartDate)<=$(vEndDate)"}>}LVR.Montant)/1000

How can i do this? Thanks a lot !!

[jonathandienst]

You need a total in Above as well and 0 as the starting index to include the current row in the cumulative value:

=Rangesum(Above(Total Sum({$<[LVR.Date d_expédition] = {">=$(vStartDate)<=$(vEndDate)"}>} LVR.Montant), 0, rowno(Total))) / 1000