Most agencies get stuck at 30 percent margins on service retainers. Start using...

https://www.a1bookmarks.win/seo-retainers-usually-cap-out-at-30-percent-margins-because-you-are-trading

Most agencies get stuck at 30 percent margins on service retainers. Start using your agency as a lab to build the internal tools you actually need. Once you sell that software, you can easily shift those margins to 70 percent or more.