Most SEO agencies are stuck in a service trap that keeps margins around 30...

https://www.bookmarking-presto.win/seo-retainers-usually-cap-your-margins-around-30-because-the-work-never-gets

Most SEO agencies are stuck in a service trap that keeps margins around 30 percent. If you turn your internal workflows into a simple tool, you can hit software margins of 70 percent or more. Stop selling your hours and start building an asset.