@COMMA[n] :  Returns the number with commas (or the appropriate Thousands character for your current country setting) inserted where appropriate.

 

Note: Some variable functions can directly generate a numeric result with appropriate thousand separators if you add a c to their scale parameter.

 

Examples:

 

echo %@comma[12345678]

12,345,678

 

echo %@comma[0.12345678]

0.12345678

 

echo %@comma[%_xpixels]

1,920

 

See also: @CONVERT, @FORMAT, @FORMATN.