1、假定提成计算规则为：提成=销售额*提成比例，提成比例按时间递减，具体入下表，要求出每个客户交易的提成点：
2、在I16的单元格中输入=LOOKUP(DATEDIF(H16,G16,"m"),{0,12,24,36}荑樊综鲶,{0.01,0.008,0.005,0.002})这个表达式中包含两个函数：lookup和datedif1、datedif(H16,G16,"m")函数表示交易月和首单月之间间隔的月份2、lookup（间隔的月份,{0,12,24,36},{0.01,0.008,0.005,0.002})则是提成规则的匹配
3、回车后得到如图所示结果：
4、这样看，是比IF函数简单很多吧
