pandas: Divide DataFrame last row by first row

Question

This questions is similar to Python: Pandas Divide DataFrame by first row

I have a DataFrame which looks like this:

            1125400  5430095  1095751         


        

Answer 1

A clearer way is to use iloc:

df.iloc[0] / df.iloc[-1]

Answer 2

Just take the first row and the last row values, then divide them, like this: df.T[df.index[0]] / df.T[df.index[-1]]