net calories
Janel,
Yes, there are formulas to use and calculate the caloric intake, the RMR and all of those calculations that are needed. But, without knowing your client, her health history, her daily activities, diet, and BF% I can’t suggest anything that might be useful to you. When it comes to dieting I refer my clients to a dietitian.
A dietitian or a nutritionist would be more appropriate to help you with this question.
Best,
Harris