D2C apparel typically runs 50–70% gross margin; supplements 60–80%; consumer electronics 20–40%; SaaS 75–90%.
Margin determines your ceiling on acquisition and retention spend. Low-margin businesses (electronics, food) need to be ruthlessly efficient on CAC.
Voice recovery is margin-friendly because cost per recovered cart (€0.18–€0.50) is far less than the gross profit on that cart in nearly every category.