vba – Create an application that calculates and displays the amount of a homeowner’s property tax

Having problems with some Visual Basic for school. can someone overlook the code? Also the tax is 1.35% of the property’s assessed value, which will be entered by the user.

Imports System.Windows.Forms.VisualStyles.VisualStyleElement

Public Class Form1
Private Sub btnStart_Click(sender As Object, e As EventArgs)

End Sub

Private Sub Label1_Click(sender As Object, e As EventArgs) Handles Label1.Click

End Sub

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click

End Sub

Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles TextBox1.TextChanged

    Private void Button1_Click(Object sender, EventArgs e)
        {
        TextBox2.Text = Convert.ToString((Convert.ToDouble(TextBox1.Text) * 1.35) / 100);
        TextBox2.Show();

        }
    Private void button2_Click(Object sender, EventArgs e)
        {
        this.Close();
        }




End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

    Double tax = Convert.ToDouble((TextBox1.Text)) * 5 / 100;

       Double Roundedtax = Math.Round(tax, 2);

       TextBox2.Text = Convert.ToString(Roundedtax);

       TextBox2.Show();

       textBox3.Text = Convert.ToString(Convert.ToDouble(TextBox1.Text) + Convert.ToDouble(TextBox2.Text));

       textBox3.Show();



End Sub

End Class