Variance Formula

Hi, sorry for such a small issue but hoping to get a quick second look. I input the following to calculate BW percent but the following screenshot with the error keeps coming up, despite the comma I put in. Would anyone know what could be wrong with the syntax? 

GetDataCell("BWPercent(S#Working:V#QTD:T#QuarterNext1(|CVTime|),S#Budget:V#QTD:T#QuarterNext1(|CVTime|))"):Name(Var %)

Thank you