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 Crystal Reports Forum : Crystal Reports 9 through 2022 : Technical Questions
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LittleMojo
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Quote LittleMojo Replybullet Topic: Percent Change Formulas
     Posted: 20 May 2010 at 10:49am
Would really appreciate some help with this, because I'm completely stumped.  I have a crosstab report that is summarizing unit volume by manufacturer down the side and by fiscal year and quarter across the top.  Need to calculate two percent change formulas...
- one for the most recent quarter compared to the same quarter one year earlier
- second one is the growth rate from the very first quarter to the most recent quarter.
 
I'm a newbie and understand almost nothing about formulas, etc. beyond basic CR so any assistance would be appreciated.  Or for pointing towards online resources that might show how to accomplish this.
 
Thanks!
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LittleMojo
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Quote LittleMojo Replybullet Posted: 26 May 2010 at 9:47am
FYI...
 
I stumbled onto what embedded summaries are, and was able to accomplish this.  Code for a percent change over four quarters follows...
 
if CurrentColumnIndex < 4 then
    0
else
    if GridValueAt (CurrentRowIndex, CurrentColumnIndex-4, 0)=0 then
    0
    else
    (((GridValueAt (CurrentRowIndex, CurrentColumnIndex, 0)/GridValueAt (CurrentRowIndex, CurrentColumnIndex-4, 0))^(1/(4+1)))-1)*100
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