Answers for "pandas format column as percentage"

pandas percent change

df['Percenet Change'] = df['Column Name'].pct_change().mul(100)

format numbers in column to percentage in python

df['var2'] = pd.Series([round(val, 2) for val in df['var2']], index = df.index)
df['var3'] = pd.Series(["{0:.2f}%".format(val * 100) for val in df['var3']], index = df.index)