Hi, I have a table with 2 rows that contain years 2011 and 2012. My columns are the months of the year and the values are amounts. I want to add a third row to find the difference between the two years for each month. So, If 2011 = $275 and and 2012 = $250 for October I need the row below to be $25. I was wondering how I would formulate my expression. Any help would be greatly appreciated!!! Dan

Hi, As your row group has only two rows, one for 2011 and other for 2012, the below expression will work.. =RunningValue(Fields!amount.Value,Last,"month") - RunningValue(Fields!amount.Value,First,"month") Here month is the name of column group. Kindly revert if this is not the case.- Chintak (My Blog)

=RunningValue((Last(Fields!amount.Value)-First(Fields!amount.Value)), Sum, "DataSet1") Thanks for the response! I have the code above, which results in an error. Is there anyway around this?