Hi There,
When referencing the Progress Bar in each Epic, as well as various Jira Reports, we have found that Jira does not seem to be able to detect when an issue is actually closed because it's a Duplicate/Won't Do, and not because it's actually Done.
For example, in the screenshot attached, Jira says the Epic is "40% Done" as it is calculating it as 2 / 5 Stories Done. Ideally, we want to be able to exclude the ticket that is Closed as Duplicate/Won't Do, so Jira calculates it as 1 / 4 Stories Done instead (i.e. Epic is 25% Done). 
Similarly, when using the Epic Burndown charts, Jira will indicate 67% unestimated issues for an Epic, impacting its forecasting capabilities. However, when we dive into what those unestimated issues are, they are the tickets where we purposely erased the Story Point field as they were Closed due to being Duplicate/Won't Do.

Looking for a way we can keep marking tickets as Closed (Resolution: Duplicate/Won't Do, etc.) instead of just Deleting them, and also have these excluded from Jira reports and the Epic progress bar.
Thank you in advance for any suggestions and ideas!
- Jacqueline