Hi,I was able to create an MDX calculation that generates percentage changes between time periods for a numeric measure.However, what I really need is to calculate a cumulative percentage between time periods for the same measure.Let's say I have a Client dimension with Client ABZ. I also have a Date dimension and I want to calculate the cumulative premium change percentage over Quarters.So here are the premium values for each quarter for Client ABZ:Q1: $100Q2: $120Q3: $140Q4: $110So Q1 will start off at 0% since there is nothing before Q1. Q2 will have a 20% increase so the cumulative percentage for Q2 will be 20%. Q3 changed 16.6%, so this will need to be added to the 20% from the Quarter before (Q2) and the new cumulative percentage for Q3 will be 36.6%. Q4 changed by - 21.4% from the previous quarter and will need to be subtracted from Q3 percentage to bring the new cumulative percentage in Q4 to 15.2%. So it's like keeping a rolling percantage amount for each time period (in this case it would be quarter)Is there a way to do this in SSAS using an MDX calculated field?thanksScott
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