How do I create a formula column that will subtract two generated colums, from column grouping?

I have a Matrix with a column grouping.
when running the report it creates two columns.
Column A     Column B

I need:

Column A     Column B      =Column A - Column B

I need to subtract Column B  from Column A somehow by referencing

I am having a problem with the formula where it only shows column A in the formula colum.

Please advise!!
rhservanAsked:
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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
Not enough information, for example,what is your data source and data set?
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rhservanAuthor Commented:
Hope this helps!
Variance.rtf
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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
Are you saying that there is a varchar field called ACTUAL_BUDGET, which says "Actual" or "Budget", and there is a money field called SIGNEDDATA?
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rhservanAuthor Commented:
Yes, Actual and budget is in a Category dimension which compares Actual dollars spent to Budget Dollars spent based on the money measure signeddata.
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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
Try this;

=sum(IIf([ACTUAL_BUDGET])="Actual",SIGNEDDATA,0)-sum(IIf([ACTUAL_BUDGET])="Budget",SIGNEDDATA,0)
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rhservanAuthor Commented:
I crated a column inside the group and placed  formula in there.  When I ran the report it eroded with a scope problem.
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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
Let's start slowly then. Please try the following, and tell me which formulas give an error or an unexpected result.

=sum(SIGNEDDATA)

=sum(IIf([ACTUAL_BUDGET])="Actual",1,0)



=sum(IIf([ACTUAL_BUDGET])="Actual",SIGNEDDATA,0)
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rhservanAuthor Commented:
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rhservanAuthor Commented:
UPDATE - Disregard previous above communication.

I moved the parentheses to the end.  Which gave more of a result. However, still not correct. I added the column outside of the group in the design, thinking it would give a single column in the result. But not. See attached file. 2 problems still exist:

1. Need a single column for the result
2. Need the subtraction to work correctly

=sum(IIf(Fields!ACTUAL_BUDGET.Value="Budget",Fields!SIGNEDDATA.Value,0))-
sum(IIf(Fields!ACTUAL_BUDGET.Value="Actual",Fields!SIGNEDDATA.Value,0))

GIVES ME THIS:
Result.rtf
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Phillip BurtonDirector, Practice Manager and Computing ConsultantCommented:
It depends how you inserted the column.

Start again with two columns, then right-hand click on the second column and select Insert Column - Outside Group - Right.

You can then insert this formula in the third column.

If you find this is not working, then instead of using a Matrix, use a Table, and do the grouping/pivotting in SQL instead of leaving it to SSRS.
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