Nutrition tip: importance of being protein-centric in your diet.
Most people are protein deficient.
Protein intake should be fixed. It should not be set based on a percentage of calories like carbs and fat. Ideally consume 1g of protein per pound of body weight per day.
Even if you have a lower calorie day, the amount of protein should not change. It just means you have a higher amount of calories from protein that day.