How to show percentage (text) next to the horizontal bars in matplotlib?
Here is a working example to add a text to the right of horizontal bars:

import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import seaborn as sns

df = pd.DataFrame(np.array([['a'], ['a'], ['b']]), columns=['current_status'])
ax = sns.countplot(y="current_status", data=df)
plt.title('Distribution of  Configurations')
plt.xlabel('Number of Axles')

total = len(df['current_status'])
for p in ax.patches:
        percentage = '{:.1f}%'.format(100 * p.get_width()/total)
        x = p.get_x() + p.get_width() + 0.02
        y = p.get_y() + p.get_height()/2
        ax.annotate(percentage, (x, y))

plt.show()


Output:



You can move the texts around by changing the formula for x and y. For example, to place them on top:

x = p.get_x() + p.get_width() / 2
y = p.get_y() - 0.02


Here is a general guideline for annotating axes.