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

https://dibz.me/blog/why-a-handful-of-european-seo-agencies-stopped-being-agencies-and-1138

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.