Show two labels on a single chart series

Just learned how to add a denominator at the base of a column on a column chart that shows an average (average is simply one example, but this could be used in multiple ways):

Note: I removed all identifying info from the image on purpose... 

Anyway, here's how to do it:

Create a chart for Average times and add the data lables above the columns.  

Now, add the second series that shows the count.  You will now have two Columns showing.  

Right-click the count series and set the overlap property to 100% and change the Count series' color to match the Average series' color.  The columns now overlap and look the same.  

Last, set the data label position for the count to show inside base. 

Anyway, thought I'd share.