Pull Logic from the takeoff level to items

Hello, I had a formula that can help with x and y spacing if need be and additional stirrup, where would I apply the ../ in the formula for the clearance and double mat.

(((((([Linear:FT]-(2*(if(../[3in Clearance (Y)],3,1))/12))*(ceil((([Width]-(2*(if(../[3in Clearance (X)],3,1))/12))/([OC Spacing (X axis) inches]/12)))+1))+((ceil((([Width]-(2*(if(../[3in Clearance (X)],3,1))/12))/([OC Spacing (X axis) inches]/12)))+1)*(fix((([Linear:FT]-(2*(if(../[3in Clearance (Y)],3,1))/12))/[Bar Length])))*([Splice Length inches]/12)))*[LBS per Foot (X)])+((([Width]-(2*(if(../[3in Clearance (X)],3,1))/12))*(ceil((([Linear:FT]-(2*(if(../[3in Clearance (Y)],3,1))/12))/([OC Spacing (Y axis) inches]/12)))+1)))*[LBS per Foot (Y)])(if(../[Double Mat],2,1))+((([Stirrup Length]+0)*(ceil((([Linear:FT]-(2*(if(../[3in Clearance (Y)],3,1))/12))/([OC Spacing (X axis) inches]/12)))+1))*[LBS per Foot (X)]))