You’re currently capped at 30 percent margins because you’re selling hours, not...

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

You’re currently capped at 30 percent margins because you’re selling hours, not assets. Treat your agency like a lab by turning your internal workflows into software. You’ll stop trading time for money and start hitting 70 percent margins.