This character is a Other Punctuation and is commonly used, that is, in no specific script.
The glyph is a small version of the glyph Glyph for U+0025Percent Sign. Its East Asian Width is wide. In bidirectional text it is written as end of a European number, e.g., a currency symbol, from left to right. When changing direction it is not mirrored. U+FE6A prohibits a line break before it, if it follows a number.
The Wikipedia has the following information about this codepoint:
The percent sign% (sometimes per cent sign in British English) is the symbol used to indicate a percentage, a number or ratio as a fraction of 100. Related signs include the permille (per thousand) sign ‰ and the permyriad (per ten thousand) sign ‱ (also known as a basis point), which indicate that a number is divided by one thousand or ten thousand, respectively. Higher proportions use parts-per notation.
Representations
System
Representation (click value to copy)
Nº
65130
UTF-8
EF B9 AA
UTF-16
FE 6A
UTF-32
00 00 FE 6A
URL-Quoted
%EF%B9%AA
HTML hex reference
﹪
Wrong windows-1252 Mojibake
﹪
Encoding: BIG5 (hex bytes)
A2 4D
Encoding: BIG5HKSCS (hex bytes)
A2 4D
Encoding: CP950 (hex bytes)
A2 4D
Encoding: GBK (hex bytes)
A9 87
Encoding: GB18030 (hex bytes)
A9 87
Adobe Glyph List
percentsmall
RFC 5137
\u'FE6A'
Bash and Zsh inside echo -e
\uFE6A
C and C++
\uFE6A
C#
\uFE6A
CSS
\00FE6A
Excel
=UNICHAR(65130)
Go
\uFE6A
JavaScript
\uFE6A
Modern JavaScript since ES6
\u{fe6a}
JSON
\uFE6A
Java
\uFE6A
Lua
\u{FE6A}
Matlab
char(65130)
Perl
"\x{FE6A}"
PHP
\u{fe6a}
PostgreSQL
U&'\FE6A'
PowerShell
`u{FE6A}
Python
\uFE6A
Ruby
\u{fe6a}
Rust
\u{fe6a}
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