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Hi, I am trying to get the percentage return between 2 rows on a data series. The goal is to produce the column "Return" in Access Date HFRXGL Index Return 31/01/2011 1217.3 -2.31% 30/11/2010 1189.23 0.27% 29/10/2010 1192.48 -1.11% 30/09/2010...