Calculations Do Not Appear in the Target Report
For example, you have a target report with the calculation Personal Accessories+100 as a column in a crosstab report. When you drill through from a source report to the target report, if Personal Accessories is filtered out of the target report (Personal Accessories is not one of the items that is returned on the column edge), then the Personal Accessories+100 calculation does not appear. Personal Accessories has been filtered out of the target report and is not available to fulfill the calculation.
To see the calculations in the target report, ensure the items used in the calculations are returned in the result set (not filtered out). For more information and examples, see Understanding Drill-Through Behavior in IBM Cognos 8 at developerWorks (www.ibm.com/developerworks).