My code is giving correct output but only till one decimal place when the percentage is in whole number (50.0% instead of 50.00%). I'm using DecimalFormat. Below is my code:-

    import java.util.*;
    import java.lang.*;
    import java.text.DecimalFormat;
    public class Main
    {
        public static void main (String[] args) throws java.lang.Exception
        {
            Scanner sc = new Scanner(System.in);
                int n = sc.nextInt(); //candidates
            int m = sc.nextInt(); //electors
            double div = 0.0; double per = 0.0;
            int t = m;
            int v[] = new int[n];
            while (m != 0)
            {
                int cv = sc.nextInt();
                cv = cv - 1;
                v[cv] = v[cv] + 1;
                m--;
             }
            for (int i = 0; i <=n-1; i++)
            {
                int a = v[i];
                div = t/a;
                per = (1/div * 100.0);
                per = Double.parseDouble(new DecimalFormat("##.##").format(per));
                System.out.println(per + "%");
            }
        }
    }

O/P  (For sample Input)
50.0%
33.33%
16.67%