Trade commission

import java.util.Scanner;

public class BiggerNumber {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String town = scanner.nextLine();
        Double volume = Double.parseDouble(scanner.nextLine());
        double commission;

        switch (town) {
            case "Sofia":
                if(volume>=0 && volume <=500){
                    commission = volume * 0.05;
                    System.out.printf("%.2f", commission);
                } else if(volume > 500 && volume <= 1000){
                    commission = volume * 0.07;
                    System.out.printf("%.2f", commission);
                }else if(volume > 1000 && volume <= 10000){
                    commission = volume * 0.08;
                    System.out.printf("%.2f", commission);
                }else if(volume > 10000) {
                    commission = volume * 0.12;
                    System.out.printf("%.2f", commission);
                }else{
                    System.out.println("error");
                }
                break;

            case "Plovdiv":
                if(volume>=0 && volume <=500){
                    commission = volume * 0.055;
                    System.out.printf("%.2f", commission);
                } else if(volume > 500 && volume <= 1000){
                    commission = volume * 0.08;
                    System.out.printf("%.2f", commission);
                }else if(volume > 1000 && volume <= 10000){
                    commission = volume * 0.12;
                    System.out.printf("%.2f", commission);
                }else if(volume > 10000) {
                    commission = volume * 0.145;
                    System.out.printf("%.2f", commission);
                }else{
                    System.out.println("error");
                }
                break;
                    case "Varna":
                        if(volume>=0 && volume <=500){
                            commission = volume * 0.045;
                            System.out.printf("%.2f", commission);
                        } else if(volume > 500 && volume <= 1000){
                            commission = volume * 0.075;
                            System.out.printf("%.2f", commission);
                        }else if(volume > 1000 && volume <= 10000){
                            commission = volume * 0.10;
                            System.out.printf("%.2f", commission);
                        }else if(volume > 10000) {
                            commission = volume * 0.13;
                            System.out.printf("%.2f", commission);
                        }else{
                            System.out.println("error");
                        }

                        break;


                    default:
                        System.out.println("error");
                        break;
                }
        }
}