I just won 1 rapid game and get + 294 rating, but I get + 556 rating trend in my profile.

With the help of Stockfish in home preparation of opening, I beat Lco human , 1 game , lose 35 games.

How did that + 556 number come from where it was actually + 294 only.

So far my rating goes up when my opponent has a bigger number but less when they have a smaller number. Perhaps +556 comes from mr or ms Lco having high number or if it changed perhaps they were playing a simul and their rating change mid game?