title: Calculation of percentage of group count(*)
body: <pre><code>Select * from Namelist;
  Name      Age
  Sathish   25
  Sathish   65
  Sathish   55
  Sathish   45
  Sathish   35
  Jana      55
  Jana      25
  Jana      10
  Bala      55
  Bala      26
  </code></pre>
  
  <p>How to get Percentage value for given format;</p>
  
  <pre><code>Name   Count   Percentege
  Sathish  5     50%
  Jana     3     30%
  Bala     2     20%
  </code></pre>
  
  <p>Kindly share sql query?</p>