Rows Total

Hello Anonymous. Here is what I would do:

Go to Power Query (via Home > Transform Data > Transform Data)

Then Right Click the "Rep" column, and choose "Unpivot Other Columns"

Then double click the "Attribute" column header and rename it "Quarter", then double click the "Value" column header and rename it "Sales".

Then at the top left, choose Close and Apply.

Now back out in the Report view, create a new measure: 

Total Sales = SUM( 'Table'[Sales] )

Then create a Matrix visual, with Rep on Rows, Quarter on Columns, and Total Sales on Values.

In the Formatting pane, you can turn off Column subtotals under the Subtotals group.

The final result should look like this:

In case it's helpful, here's a link to PBIX file.

-Steve