Currency Converter

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Program
    {
        static void Main(string[] args)
        {

            Console.WriteLine("USD to BGN");
            Console.Write("Enter sum equal to USD: ");
            double USD = double.Parse(Console.ReadLine());
            double USDTOBGN = 1.79549;
            double Conversion = USDTOBGN * USD;
            Console.Write("Your sum is exchanged in BGN: ");
            Console.WriteLine(Math.Round(Conversion, 2) + " BGN");

            Console.WriteLine("_______________________________________");

            Console.WriteLine("BGN to EUR");
            Console.Write("Enter sum equal to BGN: ");
            double BGN2 = double.Parse(Console.ReadLine());
            double bgnToEur = 0.511291881196218;
            double Conversion2 = BGN2 * bgnToEur;
            Console.Write("Your sum is exchanged in EUR: ");
            Console.WriteLine(Math.Round(Conversion2, 2) + " EUR");

            Console.WriteLine("_______________________________________");

            Console.WriteLine("EUR to GBP");
            Console.Write("Enter sum equal to EUR: ");
            double EUR = double.Parse(Console.ReadLine());
            double EURTOGBP = 0.7718198141315286;
            double Conversion3 = EUR * EURTOGBP;
            Console.Write("Your sum is exchanged in GBP: ");
            Console.WriteLine(Math.Round(Conversion3, 2) + " GBP");

            Console.WriteLine("_______________________________________");

            Console.WriteLine("USD to EUR");
            Console.Write("Enter sum equal to USD: ");
            double USD2 = double.Parse(Console.ReadLine());
            double USDTOEUR = 0.9180194597689983;
            double Conversion4 = USD2 * USDTOEUR;
            Console.Write("Your sum is exchanged in EUR: ");
            Console.WriteLine(Math.Round(Conversion4, 2) + " EUR");
        }
    }
}