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Sue Taylor
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Calculated field based on a subreport field divieded by main report field

I have a Non-Conformance report that has a couple of subreports.  One of the subreports displays a sum of invoices by vendor id.  My main report displays the Sum of the Total NC Cost.  I want to calculate the Impact $ which would be (Sum of @ Total NC Cost / Subreport: Sum of Command.ext_recvd)

How do I do this?  

I was reading something about variables, but I have never used them so I don't know how to use them.
Vendor-Issues---Summary.rpt
Vendor-Spend-Subreport.rpt
Vendor-Name-Subreport.rpt
Crystal Reports

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Mike McCracken

8/22/2022 - Mon
SOLUTION
Mike McCracken

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Sue Taylor

ASKER
I created the first formula in the main report and named it calc
I created the second formula in the sub report and named it calcsubreport
I'm trying to create the third one and get a bunch of errors.

Should it really be?  Because I get errors when I enter it exactly as you wrote it down.   When I try to enter my report name in there, I get errors too.

  WhilePrintingRecords;
Shared Number{mVar SubreportTotal;
{MainReportTotal / SubreportTotal
SOLUTION
Mike McCracken

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Sue Taylor

ASKER
My main report is a summary,  Will that work?

So my final formula on the main report is:
WhilePrintingRecords;
Shared NumberVar SubreportTotal;

Sum ({@Total NC Cost}, {@Vendor}) / SubreportTotal

I don't get any errors when I test the formula however when I try to run it I get "Division by zero" error and it highlights
Sum ({@Total NC Cost}, {@Vendor}) / SubreportTotal
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