How to add percent sign to NSString

The code for percent sign in NSString format is %%. This is also true for NSLog() and printf() formats.

The escape code for a percent sign is "%%", so your code would look like this

[NSString stringWithFormat:@"%d%%", someDigit];

Also, all the other format specifiers can be found at Conceptual Strings Articles

objective-c nsstring string-literals

If that helps in some cases, it is possible to use the unicode character:

NSLog(@"Test percentage \uFF05");

CodeHunter