Most SEO retainers max out at 30 percent margins. If you start treating your...

https://bizzmarkblog.com/what-mistakes-do-agencies-make-when-they-try-to-ship-software/

Most SEO retainers max out at 30 percent margins. If you start treating your agency like a lab to build your own internal tools, you can push those software margins past 70 percent. It’s time to stop selling manual hours and start shipping value.