Pie Chart - Live Data Connection

Hi, 

I'm trying to modify an existing dashboard visual (live connection) that currently shows sales ($value) by customer service rep. It is represented via a pie chart. Our customer service reps would like for me to add to this visual the total number of actual sales orders that a specific rep has taken. Currently, when you hover over the pie chart visual it shows the employees name and Net amount $, but i'd like for the third item to show number of orders. 

I am very new to Power BI, having only been exposed to it within the last few months, so i'm not sure that this is even something that is possible?

thanks!