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How to display percentage on an SSRS Report

Posted on 2014-02-06
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Last Modified: 2014-02-13
I have a row group and for each row I display a count and then display a total for the group in the group footer. I'd like to display the percentage next to the count but I am not sure how to create it. Any help is appreciated.
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Question by:J C
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by:Tony303
Tony303 earned 200 total points
ID: 39840735
Hi,

Here is a wee example I have made.
You are dealing with rows, which is slightly diffrent but the key I think is to reference your denominator as the Text box value.

You'll get the idea.

T
SSRS.docx
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ValentinoV earned 300 total points
ID: 39841124
You can use the Sum() function to calculate the percentage.  This function has several implementations, the one you're after takes two parameters: what to sum and the scope.

Here's what the expression would look like:

=Fields!YourCount.Value / Sum(Fields!YourCount.Value, "YourRowGroup")

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This assumes that your count is a field in the dataset.  If it's a calculation in the tablix then you'll want to replace the first parameter in the Sum() call with that calculation.  Note that the Count/CountDistinct/CountRows functions also accept scope.

The expression would become something like:

=ReportItems!YourCountTextbox.Value / Sum(<some Count expr>, "YourRowGroup")

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Ow, to format the percentage you can put a P in the Format property of the textbox.  That's just one method, there are several as this article explains: Formatting Numbers [SSRS]
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Author Comment

by:J C
ID: 39842348
Thank you guys for your help so far, I am having issues and I am sure it's user error but here is what I've got.

Here is my expression

=Count(Fields!question.Value) / Sum(Count(Fields!question.Value), "table1_banswer")

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"Warning      1      [rsRuntimeErrorInExpression] The Value expression for the textrun ‘Textbox21.Paragraphs[0].TextRuns[0]’ contains an error: Input string was not in a correct format.      C:\Users\Liz and Josh\Documents\Visual Studio 2008\Projects\WC Reports\WC Reports\Buyer Profile Summary By Project.rdl      0      0      "

It returns a value of 1 for every row.
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by:Tony303
ID: 39842858
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by:Tony303
ID: 39843018
So did you get it going in the end?
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Author Comment

by:J C
ID: 39843039
Yeah I was grabbing the sum from the wrong group. I was dividing the count by the sum of the same value. Brain freeze on my part. Once I grabbed the sum of the correct group it all worked as expected. Thanks for your help.
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by:Tony303
ID: 39843162
Cool,

PS. it is customary to give a few points to everyone who helped positively with the question. I know Valentino is the undisputed king of SSRS, and his answer was the best, but a hundred points here and there makes all the difference to mere mortals.

Cheers now, go well, have fun.

T
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Author Comment

by:J C
ID: 39843208
Tony,

I usually do that but it's been a long week. I'll see if they'll let me redistribute some to you. I appreciate your response and it was leading me in the right direction. Sorry for that.

Thanks
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by:Tony303
ID: 39843773
Don't panic, I'll live. keep smiling.
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