Views by subscription status

Sitting in Advanced mode as a breakdown you can apply to most reports, this split shows how much of a video's performance came from the audience you already have. Retention is where it earns its keep. Comparing average view duration for subscribers against non-subscribers shows whether a video held the people it was made for, or whether it found a different crowd entirely. A high subscriber share is not automatically good news, since it can mean the video never travelled beyond people who already knew you.