First things first, you need to open the Parkmobile app and log in to your account. From there, you'll want to find the parking session you want to end and click on it. This will take you to a screen with all the details of your current parking session.
Now, here's the part where most people get stuck: finding the end parking button. It's usually at the bottom of the screen, but it can vary depending on the version of the app you're using. Just scroll down and look for the "End Parking" or "Stop Session" button - it's pretty hard to miss!