There are experts and then there are experts. A week from tomorrow, I will have been at this for six years and have vetted a lot of them over the course of this journey. I still have plenty to learn, but the butter chuggers discussing percentages are not the best path to follow IME.
If you haven’t done so already, I strongly encourage you to delve in to the ketogains macro recommendations (including why measurements are more important than ratios/percentages). You can find them on the book of faces, red dit, and on their own dot com page.
% calories and grams to reach the calories are two different values.
For instance, I want to lose weight, so I am going to decrease my fat intake on keto. But, I still need to reach a calorie value to keep my body from going into preservation mode.
For me, my daily calorie intake is just under 2000 calories, so I will use 2000 to make it easy.
Typically, keto is 70% fat/25% protein/5% carbs. Since I am dropping fat down some, I am 60% fat/35% protein/5% carbs.
Calories: 9 calories per gram fat, 4 calories per gram protein and carbs.
So, 35% of 2000 = 700 calories need to come from protein. 700/4 calories per g = 175g of protein a day.