Tableau: How to Use the Same Measure at Different Levels of Aggregation in the Same View
Drag sum(sales) onto the label mark.
Drag another sum(sales) to the detail mark. Change the aggregation to average instead of sum.
Drag the average pill into the middle of the view to show measure names and measure values.
Repeat steps two and three until you have all of the aggregations you want. This also works for table calculations like percent of total.
Add in your dimensions, and you have a finished view.