EXCEL函数问题：我现在需要用函数计算出G和H的数值,应该怎么算呢?

G列的公式：
=COUNTIF(E:E,">=400")-COUNTIF(E:E,">499")
H列的公式：
=COUNTIF(E:E,">=500")-COUNTIF(E:E,">599")
I列的公式：
=COUNTIF(E:E,">=600")