Many variables are in play here; your current bodyweight, your bodyfat percentage, what is your target at the end of the cut, how do you respond to carbohydrates...
But usually in a cut, people tend to reduce carbohydrates and elevate the protein content, since protein is more filling than carbs or fat, so it tames the hunger during a cut.
45% of protein is a little too much, mostly cutters can do well with a 30% protein, 40%carbs and 30% fat. now surely you can adjust +5% or -5% on a certain macronutrient I(carbohydrates mostly) but these are 30/40/30 (P/C/F) is usually optimal since:
You are getting enough protein to minimize muscle wasting during a cut
You are keeping a steady amount of carbohydrates that keeps your energy fueled for the heavy workouts
A balanced amount of fats that are needed for hormonal synthesis and other physiological needs.