cumulate rows within a pivot table

[NiceAnalyse]

I need to cumulate rows within a pivot table, but it only works within the columns with this functoin:

RangeSum(Above(TOTAL Sum(Wert), 0, RowNo()))

Many many thanks in advance!!!

[vincent_ardiet_]

Try with
RangeSum(Before(Sum(Wert), 0, ColumnNo()))