Compare text rows and return result in numeric

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mamoormasoomi wrote:

Hello, 

Please check the below screenshot and help me to resolve this issue.

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mamoormasoomi

To get the expected output, the first step is sorting by Key1 ascending and adding an index column to determine the rows order.

Then create a calculated column

Result Key = 'Table'[Index]-MINX(FILTER('Table',EARLIER('Table'[Key1])='Table'[Key1]),'Table'[Index])+1

See more details in the attached pbix file.