Trade Commissions

using System;
using System.Reflection;

namespace TradeCommissions
{
    class Program
    {
        static void Main(string[] args)
        {
            string town = Console.ReadLine();
            double sales = double.Parse(Console.ReadLine());

            double commissions = 0;

            if ((town == "Sofia") && (sales <= 500))
            {
                commissions = sales * 0.05;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Sofia") && (sales <= 1000))
            {
                commissions = sales * 0.07;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Sofia") && sales < 10000)
            {
                commissions = sales * 0.08;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Sofia") && (sales > 10000))
            {
                commissions = sales * 0.12;
                Console.WriteLine($"{commissions:f2}");
            }
            if ((town == "Varna") && (sales <= 500))
            {
                commissions = sales * 0.045;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Varna") && (sales <= 1000))
            {
                commissions = sales * 0.075;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Varna") && (sales <= 10000))
            {
                commissions = sales * 0.10;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Varna") && (sales > 10000))
            {
                commissions = sales * 0.13;
                Console.WriteLine($"{commissions:f2}");
            }
            if ((town == "Plovdiv") && (sales <= 500))
            {
                commissions = sales * 0.055;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Plovdilv") && (sales <= 1000))
            {
                commissions = sales * 0.08;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Plovdiv") && (sales <= 10000))
            {
                commissions = sales * 0.12;
                Console.WriteLine($"{commissions:f2}");
            }
            else if ((town == "Plovdiv") && (sales > 10000))
            {
                commissions = sales * 0.145;
                Console.WriteLine($"{commissions:f2}");
            }
            Console.WriteLine("error");
        }
    }
}