code: def set_y_as_percent(ax):
      """Set y axis as percentage
  
      Parameters
      ----------
          ax : matplotlib axis
              Respective y axis element
  
      Returns
      -------
          matplotlib axis
              Manipulated axis element
      """
      warnings.filterwarnings(
          action="ignore", category=UserWarning
      )  # workaround until there is clear direction how to handle this recent matplotlib bug
      yticks = 100 * ax.get_yticks()
      yticklabels = [f"{y:.4g}%" for y in yticks]
      ax.set_yticklabels(yticklabels)
      return ax
  
file_path: neural_prophet/neuralprophet/plot_utils.py
imports: import logging
  import warnings
  from collections import OrderedDict
  from typing import Optional
  import numpy
  import torch
  from neuralprophet import time_dataset, utils_torch
label_desc: Use image node_id 4 for calling a global function with example usage: set_y_as_percent(ax) and returns: ax