excel的平均数肿么保留1位小数

=OR(VALUE(RIGHT(INT(I52*1000),1))5,AND(VALUE(RIGHT(INT(I52*1000),1))=5,(I52*1000-INT(I52*1000))0),AND(VALUE(RIGHT(INT(I52*1000),1))=5,MOD(VALUE(RIGHT(INT(I52*100),1)),2)=1))*0.01+ROUNDDOWN(I52,1)