PC:=7/16MA(C,5)+5/16MA(C,10)+3/16MA(C,20)+1/16MA(C,60);
D:=IF((H PC AND L =PC) OR (L PC AND H =PC),MAX((H/PC-1)100,(PC/L-1)100),((H/PC-1)+(PC/L-1))/2100);
PD:=MA(D,M);
Pcr:REF(PC,1),DOTLINE,COLORGRAY;
UW1:REF(PC(1+PD/100),1),COLORBLUE;
LW1:REF(PC(1-PD/100),1),COLORRED;
UW2:REF(PC(1+1.5PD/100),1),COLORCYAN;
LW2:REF(PC(1-1.5*PD/100),1),COLORYELLOW;