Meeting booked rate

Meetings held divided by contacts reached. The SDR number, and the one that converts outbound effort into pipeline.

From a thousand contacts, a decent cold campaign produces a handful to a couple of dozen meetings; a signal-based campaign on a tight list can do several times that from a fraction of the volume. That difference is the whole argument for narrowing.

Count meetings that happened, not meetings that were booked. No-shows are a targeting signal too.