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Calculating difference from previous year by area
Hi, I wonder if anyone can help me with what I was hoping would be a relatively common calculation, but I've so far failed to find a solution. I need to calculate the difference in [Value] from the ...
Thank you both so much for replying.
I couldn't get the solution by Kaviraj11 to work (presumably my fault), but the code supplied by ThxAlot worked a treat and I've been able to apply it to my real-life data. Excellent stuff!