[2025 Day 1 (Part 2)] [Java] Having issues with the Day 1 solution, can't seem to figure out where the bug is, as it runs on smaller test inputs just fine.

The function I'm using to calculate crossing/ending at zero is the one below:

  static int countRotations(int start, int rot) {
    int newVal = start + rot;
    if (newVal >= 100) {
      return (start != 0 ? 1 : 0) + (rot - start) / 100;
    } else if (newVal <= 0) {
      return (start != 0 ? 1 : 0) + (- rot - start) / 100;
    } else {
      return 0;
    }
  }

start is guaranteed to be between 0-99 and rot is positive/negative for right/left.

It works fine on my own manual test inputs, as well as those that I've tried from other reddit posts. Full code here [pastebin link]. Fair warning, I'm new to java so it might not be the prettiest.
Thanks!