Hi @C9411010 - Please see further information on other measures I had calculated:
Measure SalesLY :
Sales LY = CALCULATE( [Total Sales] , DATEADD( Dates[Date] , -1, YEAR ) )
Measure YoY Growth Rate:
YoY Sales Growth New = DIVIDE( [Sales TY vs LY ] , [Sales LY] , 0 )
Sales This Year vs Last Year:
Sales TY vs LY = IF( ISBLANK( [Sales LY] ) , BLANK() , [Total Sales] - [Sales LY] )
Total Sales:
Total Sales = SUMX(Sales , Sales[Quantity] * RELATED( ‘Product’[Current Price] ) )