Calculation of a cumulative product and sum:

import pandas as pd

df = pd.DataFrame([[10, 20, 30, 40], [7, 14, 21, 28], [55, 15, 8, 12],
                   [15, 14, 1, 8], [7, 1, 1, 8], [5, 4, 9, 2]],
                  columns=['Apple', 'Orange', 'Banana', 'Pear'],
                  index=['Basket1', 'Basket2', 'Basket3', 'Basket4',
                         'Basket5', 'Basket6'])

print("\n----------- Cumulative Product -----------\n")
print(df[['Apple', 'Orange', 'Banana', 'Pear']].cumprod())

print("\n----------- Cumulative Sum -----------\n")
print(df[['Apple', 'Orange', 'Banana', 'Pear']].cumsum())

C:\pandas>python example.py
 
----------- Cumulative Product -----------
 
           Apple  Orange  Banana     Pear
Basket1       10      20      30       40
Basket2       70     280     630     1120
Basket3     3850    4200    5040    13440
Basket4    57750   58800    5040   107520
Basket5   404250   58800    5040   860160
Basket6  2021250  235200   45360  1720320
 
----------- Cumulative Sum -----------
 
         Apple  Orange  Banana  Pear
Basket1     10      20      30    40
Basket2     17      34      51    68
Basket3     72      49      59    80
Basket4     87      63      60    88
Basket5     94      64      61    96
Basket6     99      68      70    98
 
C:\pandas>