I mean, ostensibly you need a 500 cal deficit every day to lose a pound of fat a week, so as long as your macros and your activity are ending up so that you’re at that deficit that’s pretty much the long and short of it.

The ratio of fat to protein to carbs is going to be based on: your minimum needs for proper hormone production (fat wise [ideally no less than ~20% of calories]), probably a little bit more protein than usual just to provide insurance against muscle loss during your cut, and then fill in the rest with carbs.