After at least one of the subtasks has been completed, you can check the task progress from the top indicator in the task detail view or from a small indicator on the right side of the task in the list view when "Show Details" enabled.
Task progress
After at least one of the subtasks has been completed, you can check the task progress from the top indicator in the task detail view or from a small indicator on the right side of the task in the list view when "Show Details" enabled.