There are different schools of thought on how much of each you should be getting. The dieticians/doctors (as well as my own research) don't really recommend percentages. If you've had bariatric surgery you should definitely try to get your protein in first 70-80 grams minimum. Limit the "bad" carbs and stick to "healthy" fats as much as possible. That's pretty much the approach I've had.

Personally, I'm at 50% protein, 40%fat, 10%carbs. I hardly ever get my 138g protein, but I try to hit at minimum 80-100g. I do try to keep the carbs under 30, and don't force myself to eat fat, of course.

My Dr said to set the calories to 1100 for maintenance and use the recommended %ages. He does not believe in the high protein amounts many bariatric programs prescribe to. His prefers plant based and high fiber, with thoughtful choices of protein. One reason I went to him. I tried South Beach and it did not work. And I'm not a huge meat eater.

I have mine set specifically by grams. For me, it's worth it to be able to set by specific grams, which is how my doctors, dietitian, and trainer have them set. I use baseline macros with exercise add-backs, which allow me to have variable training days. Baseline is 1,145kc, 35c, 105p, 65f. My add-backs are by percentage of my exercise calories earned: 15%c, 30%p, 55%f. Since I'm still losing, I don't eat back all of my allowed fat.