Is there a way to write a report when a value changes over time. For example the value = X from 1/1/08 - 1/31/08 and then it changes to Y from 2/01/08 - 2/28/08. Can a report be written from 1/1/08 - 2/28/08 where it applies the value appropriately?
And substituting the actual field name for this: [YourDateField] (while leaving the brackets) and replacing "YourReportName" with the actual report name and the text box names with their actual names.