Lab5-Increase/decrease value in array

def InDeValue(array,value):
   percent = (100+value)/100
   i = 0
   newArray = 0
   print('before  after')
   while(i<len(array)):
      newArray = percent*array[i]
      print(array[i],newArray)
      i+=1

def setup():
   A=[20,30,90,60,100,60,50]
   InDeValue(A,20)
   InDeValue(A,-20)
setup()
 
Result

before  after
20 24.0
30 36.0
90 108.0
60 72.0
100 120.0
60 72.0
50 60.0
before  after
20 16.0
30 24.0
90 72.0
60 48.0
100 80.0
60 48.0
50 40.0