=IF(A1<=10,0,IF(AND(A1>10,A1<=11),20*A1-200,IF(AND(A1>11,A1<=13),30*A1-310,IF(AND(A1>13,A1<=15),40*A1-440,IF(A1>15,500)))))A1为X,根据实际修改
假设X在A1B1输入:=CHOOSE(SUMPRODUCT(--(A1<={10,11,13,15,9E+307})),500,40*A1-440,30*A1-310,20*A1-200,)