title: subtraction multiplication and count recursively
body: <p>i need to do count and count % subtraction and multiplication as per the below format.</p>
  
  <p>df1 </p>
  
  <pre><code>A   B   C   D   E
  8   4   3   3   8
  5   1   6   8   2
  </code></pre>
  
  <p>expected output: </p>
  
  <pre><code>                A   B   C   D   E
                  8   4   3   3   8
                  5   1   6   8   2
  COUNT           13  5   9   11  10
  COUNT PERCENT   13  5   9   11  10
  SUBTRACTION     8   -4  -2  1   10
  MULTIPLICATION  104 -20 -18 11  100
  
  1.count will give the number of items in the columns, there can be n number of columns 
  2.count percentage
  3.subtraction = need to subtraction of count row i.e. 13-5 = 8, 5-9 = -4, 9-11=-2, 10 as it    
  4. multiplication  - its a multiplication of count and subtraction rows. 
  </code></pre>