Company Name | Date | Daily Sales ABC | 22/03/2013 | 52 ABC | 23/03/2013 | 25 _____________________________________________ After I use the function you suggessted, I get
Company Name | Date | Daily Sales | Cumulative Sale ABC | 22/03/2013 | 52 | 230 ABC | 23/03/2013 | 100
If you wish to display Cumulative sale values for the Company/Date field combination to show how sale figure is growing through 'accumulation' (using RUNNINGTOTAL), there's little point in aggregating that field?