Stop trapping your agency in a 30 percent margin ceiling with standard...

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

Stop trapping your agency in a 30 percent margin ceiling with standard retainers. Start treating your agency as a lab to build simple software that scales. You’ll push your margins past 70 percent and stop trading your time for static monthly fees.