Trade commission

using System;
using System.ComponentModel.Design;
using System.Globalization;
using System.Reflection;
using System.Runtime.ConstrainedExecution;
using System.Security.Cryptography;

namespace SomeExcercises
{
    class Program
    {
        static void Main(string[] args)
        {
            double commission = 0.0;
            string city = Console.ReadLine();
            double sale = double.Parse(Console.ReadLine());

            if (city == "Sofia")
            {
                if (sale >= 0 && sale <= 500)
                {
                    commission = (sale * 0.05);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 500 && sale <= 1000)
                {
                    commission = (sale * 0.07);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 1000 && sale <= 10000)
                {
                    commission = (sale * 0.08);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 10000)
                {
                    commission = (sale * 0.12);
                    Console.WriteLine($"{commission:f2}");
                }
                else
                {
                    Console.WriteLine("error");
                }
            }

            else if (city == "Varna")
            {
                if (sale >= 0 && sale <= 500)
                {
                    commission = (sale * 0.045);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 500 && sale <= 1000)
                {
                    commission = (sale * 0.075);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 1000 && sale <= 10000)
                {
                    commission = (sale * 0.10);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 10000)
                {
                    commission = (sale * 0.13);
                    Console.WriteLine($"{commission:f2}");
                }
                else
                {
                    Console.WriteLine("error");
                }
            }

            else if (city == "Plovdiv")
            {
                if (sale >= 0 && sale <= 500)
                {
                    commission = (sale * 0.055);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 500 && sale <= 1000)
                {
                    commission = (sale * 0.08);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 1000 && sale <= 10000)
                {
                    commission = (sale * 0.12);
                    Console.WriteLine($"{commission:f2}");
                }
                else if (sale > 10000)
                {
                    commission = (sale * 0.145);
                    Console.WriteLine($"{commission:f2}");
                }
                else
                {
                    Console.WriteLine("error");
                }
            }
            else
            {
                Console.WriteLine("error");
            }


        }

    }
}