public class LayananPajak {
    @Deprecated(since = "1.2", forRemoval = true)
    public static int hitungPajakLama(int penghasilan) {
        return penghasilan / 10;
    }

    public static int hitungPajak(int penghasilan) {
        return (int) Math.round(penghasilan * 0.11);
    }
}