A percentage sign is usually after the number;we put a percentage sign after it.

百分号通常在数字后面；我们在它后面加一个百分号。

A percentage sign, you probably know, is a small zero or an " o" with a diagonal line and another small zero or " o" on the other side of the line (%).

您可能知道，百分号是一个带有对角线的小零或“o” ，而另一侧是另一个小零或“o” （%）。