using System.Collections.Generic;

using System.Linq;

using System;

public class Program

{

    public static void Main()

    {

        var completedDocuments = new List<int>() { 1 };

        var targetDocuments = new List<int>() { 10, 11, 12 };

        var x = (completedDocuments.Count() / targetDocuments.Count()) * 100m;

        var y = decimal.Divide(completedDocuments.Count(), targetDocuments.Count()) * 100m;

        var z = (completedDocuments.Count() * 100m / targetDocuments.Count() );

        Console.WriteLine("Hello World");

        Console.WriteLine(x);

        Console.WriteLine(y);

        Console.WriteLine(z);

    }

}