“... Just as there is no single food and drink formula for restaurant industry success, there is no simple formula for a healthy profit margin. Your restaurant profit margin can be influenced by food and inventory trends your geographic location the state of the broader economy and a wide range of other factors. Generally, restaurants have a profit margin that falls between 3% and 6% (but it can be up to 10%)...” https://www.restaurant365.com/blog/what-is-the-average-profit-margin-for-a-restaurant/