How do I setup an automated bar chart to show the progress of an epic

[Amit_Si]

Let's assume I have 5 epics to cover in this sprint. I want to show the progress of the epic by showing a stacked bar chart where a single bar will show how much percentage of the epic is in progress, how much in blocked and consequently how much is has been completed. 

Is there a way to do it? 

I have found the pie chart widget which shows this for a single epic. However, I want to do it via a stacked bar chart for all the epics together.