public static class GlobalValueOne
{ public static int price; }
public static class GlobalValueTwo
{ public static int quantity; }
public static class GlobalValueThree
{ public static int total; }
public static class GlobalBusiness
{ public static int select;}
public static class GlobalPersonal
{ public static int otherselect; }
namespace ThreeScreenDropBox
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void TotalButton_Click(object sender, RoutedEventArgs e)
        {
            GlobalValueOne.price = int.Parse(PriceBox.Text);
            GlobalValueTwo.quantity = int.Parse(QuantityBox.Text);
            GlobalValueThree.total = GlobalValueOne.price * GlobalValueTwo.quantity;
            TotalBox.Text = GlobalValueThree.total.ToString();
        }

        private void BusinessButton_Checked(object sender, RoutedEventArgs e)
        {
            GlobalBusiness.select++;
        }

        private void PersonalButton_Checked(object sender, RoutedEventArgs e)
        {
            GlobalPersonal.otherselect++;
        }

        private void NextPageButton_Click(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Page2));
        }

    }
}