Hi Gary @ghartge The assignment worked for me by creating a character parameter that is populated by a drop down list and a calculated measure item that has the measure for only your subgroup. My dataset contains sales data of a retail chain. It has the variables Shop Province and Customer Province and a measure named Total Sales. If I want to imitate your case I want to see the difference in Total sales by Shop Province overall and per selected Customer province. Step 1: Create a Total Sales Customer Province Parameter that is Classified as category and has no default value (or any default value you choose) and allows only 1 value. Step 2: Insert a drop downlist onto your canvas and add Customer Province to the Category role and the parameter of step 1 to the Parameter role. Step 3: Create the measure for your selection: IF ( 'Customer Province'n = 'Total Sales Customer Province'p ) RETURN 'Total Sales'n ELSE 0 And name it Total Sales selection Step 4: Create aggregated measures Total Sales (%) and Total Sales selection (%) by right clicking on Total Sales and then choose New calculation. Choose Percent of Total - Sum Step 5: Create an aggregated measure Difference in Total sales percentage with expression 'Total Sales (%)'n - 'Total Sales selection (%)'n Step 6: Drag a list table onto your canvas and add the variables Shop Province, Total Sales (%), Total Sales selection (%) and Difference in Total sales percentage. My result: If you choose Ethnicity in stead of Shop Province and Population in stead of Total Sales and your selection variable in stead of Customer Province then you are there. Kees Kramer
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