如果超过680万都是150的话:
=IF(C7<260,0,(IF(C7<=480,(60+(C7-260)*(100-60)/(480-260)),(IF(C7<=680,(100+(C7-480)*(150-100)/(680-480)),150)))))
如果超过680还是按线性的话:
=IF(C13<260,0,(IF(C13<=480,(60+(C13-260)*(100-60)/(480-260)),(100+(C13-480)*(150-100)/(680-480)))))
=IF(A1>480,100+ROUND((A1-480)/200*50,2),IF(A1>=260,60+ROUND((A1-260)/220*40,2),0))