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

https://technivorz.com/four-dots-how-a-novi-sad-agency-cracked-the-code-on-product-evolution/

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.