SSRS 2012: Subtract multiple column values from one

Show your test data for that row.

I think you are subtracting the values that will generate result that is equal to first column.

you have another option you can subtract the report items like;

= ReportItems!col1.Value - ReportItems!col2.Value - Reportitems!col3.Value - Reportitems!col4.Value 

Thanks

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