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Is there a formula for calculating the difference between rows.
Hi, I'm trying to calculate the difference between two values in the same column. For example, I have a student (John Doe) who took one test on 9/1/2018 and received a 76 and then retook the test...
Hi drivas771994
I do not see your formula.
Nevertheless I prepared the PowerBI version for you
Please see attached pbix file
The formula seems to work well. The only problem I'm running into is that Power bi is saying that dax comparison options cannot compare a date to text for the calculated column
Could you share the screenshot of your datatable with the formula?
Or share the file if you can?