Is there a way to store the value of the result of the column of the report and use that value in calculation in another report. I need to get the grandtotal value which changed according to the prompt and want to use that grand total value to calculate new column in another report. Can we use presentation variable? I want to store the total value 30 and then calculate the region percentage. I am not able to store the total value and create the new column calculation using the total value.