Would be useful to have a % work complete field on the cards so that the Project manager has an idea on the progress made on each card and can escalate tasks that are not progressing as they should.
As well as an overall view of % work complete for the high level activities presented in the plan view.
Thanks for sharing your feedback with us. Being able to set percentage complete for cards is something that we don´t have on our roadmap right now. The closest thing to showing how much is done is by using the checklist on a card which shows how many of the sub tasks are done on the card.