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

https://oscar-wiki.win/index.php/The_Agency_Productization_Sequence_That_Actually_Works

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.