But then, if you mostly watch videos (or take a video call in your browser), the ads — both video and non-video — can fall to 1% of the actual data transferred.

But then, if you mostly watch videos (or take a video call in your browser), the ads — both video and non-video — can fall to 1% of the actual data transferred. As each person's internet usage is different, the percentage of requests blocked seems to me a better measurement than the percentage of the actual data transferred.