Three year Average
Hi, I need help with calculating 3-year average for selected Quarter. If a user selects 2019.Q2 reporting period, then I want average of 2017.Q2, 2018.Q2, and 2019.Q2 I have a DATE table and slicer values are based on this DATE table. I want output as shown in the picture. I've Sales Measure for LYSales am using SAMEPERIODLASTYEAR Please help me.
