Most SEO agencies get stuck at 30% margins because they are trapped by client...

https://www.logo-bookmarks.win/if-you-re-stuck-at-30-margins-on-client-retainers-you-re-working-too-hard-for

Most SEO agencies get stuck at 30% margins because they are trapped by client retainers. If you turn your internal workflows into simple software, you can easily hit 70% margins. It is time to start treating your agency like a lab.