Yes, I remember this being a feature in Poweramp. I was led to this forum trying to find out why I couldn't find the feature anymore. I find this feature to be particularly useful for my podcasts. My setting in iTunes will keep only unplayed episodes of podcasts - it will delete listened to episodes (how I want it). Sometimes I will skip an episode to come back to later. With this Poweramp feature removed, I'm not sure when Poweramp will consider a podcast 'played', and iTunes may prematurely delete it. Poweramp team: Please consider this request to return this 'percentage played' feature back to the app. Thank you!