Want to know how you grow your profit margins? Profit margin is a measure of your profitability. The figure varies from business to business but is a pretty good indicator of how successful you are. As author Doug Hall says, “If your profit margins aren’t rising, chances are your company isn’t thriving.” With retail, some of the biggest brands commonly achieve profit margins of 50-60%. In 2017, Ted Baker had a profit margin of 60%, Inditex 57%, and M&S 56%.