Calculation based on Column Groups?

Hi everyone,

I have a report designed in Report Builder where I have 3 columns which comes from a Column Group (img. 1). I need to have 2 more extra columns based on the values comes from the columns under the column group (img. 2). Sorry, hope this makes sense : ) The final results I have created in an excel file but want to have it inside the Report Builder.

Please see the images attached. The Calculated Formulas are in the Image 2. Thanks in advance.

Image 1:

Image 2:

Thanks heaps guys.

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artistdedigital