I'm trying to create an automation that will update a progress or status bar % based on the number of stories in that epic with a particular status. For example, if I have 10 stories in the epic, with 4 having 'ready for dev' status, 1 'to do' and the other 5 'under analysis', I want the progress bar to show 40%, 10% and 50% (and if I had 7 statuses, the different % for each status). How do I create this?