Agency retainers typically cap your margins at 30% because of the endless...

https://www.third-bookmarks.win/most-seo-agencies-cap-out-at-30-percent-margins-because-retainers-are

Agency retainers typically cap your margins at 30% because of the endless manual labor. If you treat your agency like a lab and turn those processes into software, you can push margins past 70%. Stop trading hours for dollars and start scaling.