level off
phrasal verb with level verb uk/ˈlevəl/ usUK -ll | US -l-
(also level out) if a rate or amount levels off, it stops rising or falling and stays at the same level:
Share prices are beginning to level off after the sharp rises of recent months.
level off/out at sth The bank expects that growth will level off at 2.5% next spring.
We assume rates will level out at 5.25%.