SORt(Grp,Crdl,DCS,%). Stop out rate

SORt(Grp,Crdl,DCS,%) = (Σ%rng(DCS,Crdl)([Grp].FiT.New AND List.SO(Grp,Crdl,AYr12)))/(Cohr(Grp,Crdl,DCS):HC*%