%
Symbol  Format  Data 

%  Code Point  U+0025 
TeX  \% 

SVG 
The percentage sign is used in mathematics to represent a fraction out of 100. Typically, it is used in an expression like this:
In plain language, this expression represents “fifteen percent” which is equivalent to the fraction and decimal value .
The symbol is also used in computing to represent the modulus operator. Typically, in this context, the symbol is used in an expression like this:
4 % 3
In plain language, this means four modulo three.
The modulus operator returns the remainder of dividing the first expression by the second expression.