How use RangeSUM in Pivot to SUM all before

[irmantas]

Hi All,

I have a problem, calculate accumulative sum's for some transactions in PIVOT.

I am using formula  RangeSum(Before(TOTAL sum([UseQTY]),0,ColumnNo(TOTAL)))

I need to calculate all UseTOTAL till some period. I need calculate all periods even before the filter is used.

[irmantas]

Or I need use other expression?