Funnel
Attention → buyers → advocates.
Two numbers decide whether your audience is an asset or a vanity metric: how many buyers share you, and how many of your total reach advocate.
Advocate % is PAR: of the people who buy from you, how many then recommend you. BAR is the whole-audience number below.
Enter your monthly impressions.
High impressions with a low BAR means you rent attention, you don't own an audience. The levers that move BAR are the share rate and conversion, not raw reach. That's where the work is.