Data Modeling - Creating a multipling factor for a year

We have a need on a report to adjust the result by a percent based on the year. i.e. if the value is 100 and it is in year 2007 we might add 1% making the end result 101. But if the value is 100 and it is in year 2006 we might want to subtract 2% making the end result 98.
My first thought was to create this percent as an attribute on 0CALYEAR, but it is not possible to place attributes on time charateristics. Does anyone have any suggestions for me to consider on how we might model this?
Thanks,
Chris

Hello Chris very simple suggestion for you copy from 'value' field 2 new value fields in query one for 2006 and filter this with calyear 2006 and multiply with .98 and one for 2007 and filter with calyear 2007 and multiply with 1.01. Show them in columns.
Don't worry about records for 2006 the 'value 2007' will be 0 and records for 2007 'value 2007' will be 0
Simple one
Sarhan.

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