Chart Difference between series.

[lucnieto]

-CHART REPORT STUDIO-
Hello,
I need to calculate the difference between two series. Example,
I Have a BAR chart, in first bar I have "Real Scenary", and second "Forecast Scenary". The values is 10 (real) and 20(forecast). In the Report Studio, Can I get the difference (%) between them? In this case, 50 percent.
Please, I need your help...

[tjohnson3050]

In the query, create a data item referencing the other two data items:

[forecast]/[real]