Mine as at about 93%. The problem is I am a light user, My X never went down from 100%. The battery life on this phone is noticeably worse as well. I will be taking it in sooner or later and requesting a replacement.
They won’t replace a battery on 93% health, usually under 80% gets you a replacement otherwise 7% loss in a year they won’t consider bad, although they can run some other tests to make sure all is as it should be.