hello Ernst, thanks for your input. However I may not been able to properly explained the issue, let me try to put it another way. Back to my example for the sake of explanation: Basically what I need is to do the sum exactly like column 1 in order to give a more precise total amount and afterwards print all the values of the column 1 with just 2 decimal points like the layout of column 2. If I use pattern (that I tried before) it will calculate and print like column 2 which is not ok if you want to minimize the differences when we put it with other amounts. Do you think is possible to calculate and print different stuff in ireport? thanks sum without round (column 1)sum with round (column 2) 0.53440.53 508.564508.56 508.495899999999508.50This value is the same but the second column is rounded 69.834769.83 TOTAL1,087.431087.42Thus I find a small difference that I do not want to exist