HOA6form1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace HOA6
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Button1_Click(object sender, EventArgs e)
        {

            if (checkBox1.Checked)
            {
                Class1.discount_rate = 10;
            }
            else
            {
                Class1.discount_rate = 0;
            }
            Hide();
            Form2 r = new Form2();
            r.Show();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string output = "";
            output += "Gen Ad \t\t x" + Class1.gen_ad + "\t Php " + (100*Class1.gen_ad)+ "\r\nLower Box \t x" + Class1.lower_box + "\t Php " + (200 * Class1.lower_box) + "\r\nPatron \t\t x" + Class1.patron + "\t Php " + (350*Class1.patron) + "\r\nTotal Bill: Php " + Class1.total_bill + "\r\nSchool Discount: " + Class1.discount_rate + "%\r\nFinal Bill: Php " + Class1.total_bill;
            textBox1.Text = output;
        }
    }
}