Hi Abhilash,
Actually it will have multiple rows for Amount for a specific month as seen below and the I need to have multiple rows for Percentage as well as per the formula mentioned above.
Group A B C D Total
Jan-2015 Amount 10 20 30 40 100
Percentage 10% 20% 30% 40% 100%
Feb-2015 Amount 20 10 40 30 100
Percentage 20% 10% 40% 30% 100%
Mar-2015 Amount 40 20 30 10 100
Percentage 40% 20% 30% 10% 100%