I am trying to produce a monthly report of charges and then show that information in a graph in SSRS 2008. I have the table working fine i.e. it is generating the running total using the following expression =RunningValue(Fields!Charges.Value,Sum,"Group1") . How to do I get those values to show as the data fields in my line graph? My query is a basic SQL that selects a couple of fields, date, service and then sums the charges for each day and service.