My hasty estimate is about 660 calorie deficit per day.  It seems to me if she had just switched to a reasonable caloric intake for her height/gender the fat would have fallen off really fast at first, then slower as her TDEE came down.  And she still looks fat as fuck. What this mean is she is likely still over eating, just not as much.  Which means she is doomed to failure... However a 600 calorie deficit for a shitlord looking to remove a pound or two seems reasonable to me.