Pandas percentage by value in a column

Question

I want to get a percentage of a particular value in a df column. Say I have a df with (col1, col2 , col3, gender) gender column has values of M or F. I want to get the perc

Answer 1

finding the percentage of target variation to chenck imbalance/not.

g = data[Target_col_Y]
df = pd.concat([g.value_counts(),              
g.value_counts(normalize=True).mul(100)],axis=1,keys=('counts','percentage'))

print (df)

counts percentage

0 36548 88.734583

1 4640 11.265417

finding the maximum in the columns percentage here, to check how much #imbalance there

df1=df.diff(periods=1,axis=0)
difvalue=df1[[list(df1.columns)[-1]]].max()