问题 I am trying to replicate Excel formula to PowerBI.Which is Is There any DAX to perform this calculation((1-0.2)*B2+0.2*C2). Thanks. 回答1: There no inherent way to do relative row reference in DAX, so you need to explicitly tell it which row to reference. CalculatedColumn = VAR PrevDate = MAXX ( FILTER ( Table1, Table1[Date] < EARLIER ( Table1[Date] ) ), Table1[Date] ) VAR B = LOOKUPVALUE ( Table1[B], Table1[Date], PrevDate ) VAR C = LOOKUPVALUE ( Table1[C], Table1[Date], PrevDate ) RETURN ( 1