Formatting and Parsing a Locale-specific Percentage

 
 // Format
 Locale locale = Locale.CANADA;
 String string = NumberFormat.getPercentInstance(
   locale).format(123.45);
  
 // Parse
 try {
   Number number = NumberFormat.getPercentInstance(
     locale).parse("123.45%");
   if (number instanceof Long) {
       // Long value
   } else {
       // Double value
   }
 } catch (ParseException e) {
 }