底部:=(COST(95)-COST(5))/(COST(95)+COST(5))*100; 底部成本价:COST(底部),DOTLINE,COLORYELLOW; 顶部:=100-(COST(95)-COST(5))/(COST(95)+COST(5))*100; 顶部成本价:COST(顶部),DOTLINE,COLORWHITE; 均值:=(底部+顶部)/2; 均值成本:COST(均值),COLORRED;
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