Coint - проблем с часовник

using System;

namespace Coins
{
    class Program
    {
        static void Main(string[] args)
        {
            double Money = double .Parse(Console.ReadLine());
            double Resto = Money * 100;
            double countCoint = 0;

            while(Resto>0)
            {
                if(Resto>=200)
                {
                    countCoint = Math.Truncate(Resto / 200);
                    Resto = Resto % 200;
                }
                else if (Resto >= 100 && Resto < 200)
                {
                    countCoint += Math.Truncate(Resto / 100);
                    Resto = Resto % 100;
                }
                else if (Resto >= 50 && Resto < 100)
                {
                    countCoint += Math.Truncate(Resto /50);
                    Resto = Resto % 50;
                }
                else if (Resto >= 20 && Resto < 50)
                {
                    countCoint += Math.Truncate(Resto / 20);
                    Resto = Resto % 20;
                }
                else if (Resto >= 10 && Resto < 20)
                {
                    countCoint += Math.Truncate(Resto / 10);
                    Resto = Resto % 10;
                }
                else if (Resto >= 5 && Resto < 10)
                {
                    countCoint += Math.Truncate(Resto / 5);
                    Resto = Resto % 5;
                }
                else if (Resto >= 2 && Resto < 5)
                {
                    countCoint += Math.Truncate(Resto / 2);
                    Resto = Resto % 2;
                }
                else if (Resto == 1)
                {
                    countCoint++;
                    break;
                }
            }


            Console.WriteLine(countCoint);
        }
    }
}