TDEE and deficit question.

8 weeks in, and 8 weeks of 3.0-3.4 lbs lost per week. Average is 3.2.

I’m very strict with weighing and measuring what I eat, and hit between 2300-2400 calories a day. I’m confident in that accuracy, at least to the degree it is possible. I’m consistent with how I do it all is probably the more important point here.

I also have a consistent exercise routine, 3 days of strength and light cardio, 3 days of longer sustained cardio, and a day of nothing.

Consistent results from consistent behavior. Surprise surprise right?

I guess I’m just kinda baffled how, if I’m losing ~ 3.2 lbs a week, that’s a 1600 calories per day deficit. No TDEE calc is putting me at 3800- 4000maintenance . I’m not exercising *that* much, full body 3x a week, 15 mins cardio. 45m the other days (all elliptical).

What am I missing