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