Working on a table in a new dashboard I am creating that needs an average field. This field should take sales from last 30 days and average it out, for a different daily average. Attached is table where I would be adding new measure to. I have tried a RangeSum expression, but it did not work, only had regular sales as result. Does anyone know how to create a measure that would measure average over last 30 days of table? Any help is appreciated, thanks in advance.