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LLyaudet
An unknown but somewhat common arithmetic operation
compressedgas
It makes more sense to me as (b-a)/b
LLyaudet
Or 1 - (a/b) ;) The rational behind my choice of a/b - 1 is that it corresponds exactly to what I was asked to display in an accounting report and use it to filter some lines. I would be happy if you can elaborate why it makes more sense to you :)