Hi Sam, Thank you for replying to my question. The attached image is what I now have. Column '%' already contains the "Percent of Column Total". I need to add a new derived measure containing the cumulative % within each 'Billing month'. For example: row 'Cancelled after # months' = 3 should contain the sum of '%'-values in rows 0, 1, 2 and 3 in the same billing month. The same technique should be applied to the other measure ('count') as well. Thanks, Vladimir
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