old_contents: '''
   Author      : DORIAN JAVA BROWN
   Version     : N/A
   Copyright   : All Rights Reserve; You may use, distribute and modify this code.
   Description :  
   '''
  
  Tip CAlC
  
new_contents: '''
   Author      : DORIAN JAVA BROWN
   Version     : N/A
   Copyright   : All Rights Reserve; You may use, distribute and modify this code.
   Description :  
   '''
  
  Tip CAlC
  tip = 0.00
  
subject: Update TipCalculator.py