Hi All, My report looks like below Apr,May,Jun ,July ,Total null,null,120.00,null , null I have created the variable for Sum and in Expression I have mentioned as $F{Apr}+$F{May}+$F{Jun}+$F{Jul}, in Total I am getting null value. I can understand that if we have null values in other column result will be null, how to validate the double type with null and how to calculate the total? Regards, Chakravarthy