Dashboard: Overall project time completion

[Justine Comtat]

Hello everyone,

I need to create a dashboard that displays the time completion of all the epics of my overall project. 

In my project, I have 5 epics.

For each epic, I have an estimated start and end dates and effective start and end date. 

For example,
Start date Epic #1: October 16th

Estimated end date Epic#1: Dec 31st 

Effective end date Epic #1: Jan, 5th

If I log in on Jira Dec 1st (47 days from Oct, 16th), I need it to show 61%

If I log into Jira on Jan 10th (and my project is finished yet since 5 days), I need it to show 121%

How could I do that?

Many thanks,