powerbi Power Query (M) and DAX - What's the difference? DAX example formula
Example
Previous Quarter Sales:=CALCULATE(FactSales[Sales], PREVIOUSQUARTER(DimDate[DateKey]))
(Calculates the total sales for the previous quarter, based on the Sales column in the FactSales table and the DateKey in the DimDate table, depending on the filters applied in a PivotTable or PivotChart)
