import java.util.regex.*;
 
class Test
{
	public static void main (String[] args) throws java.lang.Exception
	{
        String s = "both 56% as well as 30-60%.";
		Pattern pattern = Pattern.compile("\\b(?:\\d+[—–-])?\\d+(?:%|percent\\b)");
		Matcher matcher = pattern.matcher(s);
		while (matcher.find()){
			System.out.println(matcher.group()); 
		} 
	}
}