Examples

import numpy as np
import pandas as pd

df = pd.DataFrame({'cost': [350, 250, 200],
                   'revenue': [200, 350, 400]},
                  index=['P', 'Q', 'R'])
df

	cost	revenue
P	350	200
Q	250	350
R	200	400

Comparison with a scalar, using either the operator or method:

df == 200

	cost	revenue
P	False	True
Q	False	False
R	True	False

df.ge(200)

	cost	revenue
P	True	True
Q	True	True
R	True	True