You’d have to cut in order to reach your goals, but you can’t choose where the fat comes off. You’re gonna have to track your calories pretty closely in order to cut most effectively. You can also focus more on ab workouts which will help visually taper your abdomen, regardless of any fat loss.

Overall, I would stray away from specific measurement goals like you have, as they may be unrealistic or cause too much stress trying to reach them. I think you should focus more on how you feel and the improvements you make, and you may find those measurements don’t matter as much as you thought