title: Pandas - Adjust stock prices to stock splits
body: <p>I have a DataFrame, with prices data and stock splits data.
  I want to put all the prices on the same page, so for example if we had a stock split of 0.11111 (1/9),
  from now on all the stock prices would be multiplied by 9.</p>
  <p>So for example if this is my initial dataframe:</p>
  <pre><code>df=         Price  Stock_Splits
           0   100       0 
           1   99        0
           2   10        0.1111111
           3   8         0
           4   8.5       0
           5   4         0.5
  </code></pre>
  <p>The &quot;Price&quot; column will become:</p>
  <pre><code> df=         Price  Stock_Splits
           0   100       0 
           1   99        0
           2   90        0.1111111
           3   72         0
           4   76.5       0
           5   72         0.5
  </code></pre>