you’re reading the equation wrong (dont worry, happens all the time!)
You do NOT subract your workout calories form your BMR, you ADD them to the total burn calories and subtract 500 from the total.
So your BMR=1,600.
You burn 600 calories in a workout.
1,600+600= 2,200 (total calories for the day)
-500 (to lose weight)
Total calories to eat= 1,700
You subtract from the total burned, not the BMR.
So you’re eating some of your workout calories back, but not all.
the danger lies in eating less than your BMR + working out.
Hope this makes sense!
i also explain it in my “eating to lose weight…eat enough” video, found on my vblog.