Column1 Column2 Row1 subrow11 2 6 diffrenz (6-2 = 4) subtotal Subtotal of diffrenz: should be 4 Row2 subrow21 5 10 diffrenz (10-5 = 5) subrow22 12 13 diffrenz (13-12 = 1) subtotal Subtotal of diffrenz: should be 5+1 = 6 Hi all, above the matrix of my report from RS 2008R2. The subtotal value in each Subrow gives me always wrong values. I calculate it so: subtotal = sum(fields.diffrenz.value). Please do you habe an idea what i m doing wrong? i add it as reading here http://msdn.microsoft.com/en-gb/library/ms170712.aspx Thanks for your help! newfon

Hi Newfon, From the link you gave, I know your requirement, you have two rows to calculate the different value between two columns, just like below report: To the first total row, the value is contained in Date group, so you should add the scope to the SUM function, so it should be =SUM(Fields!Column2.Value,"Date")-SUM(Fields!Column1.Value,"Date"), to the last total row, just type in the expression =SUM(Fields!Column2.Value)-SUM(Fields!Column1.Value) For more knowledge about Inscope function, please click this blog written by Robert to learn more http://blogs.msdn.com/b/robertbruckner/archive/2009/08/10/tablix-multiple-subtotals-are-easy-aka-goodbye-inscope.aspx If you have any question, please feel free to ask. Regards, Challen Fu

thanks! It works now fine! Newfon

Please mark the thread as Answered if the question is answer correctly. Thanks Kumarkk