TradeCommissions

package ProgrammingBasics2;

import java.util.Scanner;

public class TradeCommissions {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String city = scanner.nextLine();
        double sales = Double.parseDouble(scanner.nextLine());
        double commission = 0.0;
        boolean isValid = true;

        if (city.equals("Sofia")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales - (sales * 0.95);

            } else if (sales > 500 && sales <= 1000) {
                commission = sales - (sales * 0.93);
            } else if (sales > 1000 && sales <= 10000) {
                commission = sales - (sales * 0.92);
            } else if (sales > 10000) {
                commission = sales - (sales * 0.88);

            } else {
                isValid = false;
            }
        } else if (city.equals("Varna")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales*0.045;

            } else if (sales > 500 && sales <= 1000) {
                commission = sales*0.075;
            } else if (sales > 1000 && sales <= 10000) {
                commission = sales*0.1;
            } else if (sales > 10000) {
                commission = sales*0.13;
            } else {
                isValid = false;
            }

        } else if (city.equals("Plovdiv")) {
            if (sales >= 0 && sales <= 500) {
                commission = sales*0.055;

            } else if (sales > 500 && sales <= 1000) {
                commission = sales*0.08;
            } else if (sales > 1000 && sales <= 10000) {
                commission = sales*0.12;
            } else if (sales > 10000) {
                commission = sales*0.145;

            } else {
                isValid = false;
            }

        } else {
            isValid = false;
        }

        if (isValid) {
            System.out.printf("%.2f", commission);
        } else {
            System.out.println("error");

        }

    }
}