MDX query adding SUM column

Question

I have written the following MDX

WITH MEMBER [Measures].[SumReturns] AS
  ([Dimension1].[GCode].defaultmember,[Measures].[GScore Sum])  

SELECT
   non empty  
   (  

      {[Dimension1].[Description].children},  
      {[Dimension1].[GCode].children},  
      {
         [Measures].[GScore Sum],  
         [Measures].[SumReturns]  
      }

   )  
   on columns,  
   non empty
   (
      [Dimension2].[DCode].[DCode] *  
      [Dimension2].[DName].[DName] *   
      [Dimension2.[Barcode].[Barcode] *  
      [Dimension2].[LN].[LName] *  
      [Dimension2].[FN].[FName]   

   )
   on rows
FROM [MCube]
WHERE 
(
   {[Dimension2].[HARC].[DCode].&[0000]}
)  

The query is giving me the results below:

But what I expected instead was these results:

Any suggestions on how to get the desired results?

Answer 1

Here is the query that worked to get the required results. No need of calculated measure

 select  
    non empty  
    (      
    [Dimension1].[Description].children,  
    [Dimension1].[GCode].members,  
    [Measures].[GScore Sum]   
    )  
    on columns,  
    non empty
    (
    [Dimension2].[DCode].[DCode] *  
    [Dimension2].[DName].[DName] *   
    [Dimension2.[Barcode].[Barcode] *  
    [Dimension2].[LN].[LName] *  
    [Dimension2].[FN].[FName]   

    )
    on rows
    from 
    [MCube]
    where 
    (

    {[Dimension2].[HARC].[DCode].&[0000]}

    )