using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class hinnaarvutus : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        double liitrihind = -1;
        if (DropDownList1.SelectedIndex == 0) { liitrihind = 12; }
        if (DropDownList1.SelectedIndex == 1) { liitrihind = 16; }
        if (DropDownList1.SelectedIndex == 2) { liitrihind = 18; }
        double kmarv = Convert.ToDouble(TextBox2.Text);
        double kulu100km = Convert.ToDouble(TextBox1.Text);
        double vastus = kmarv / 100 * kulu100km * liitrihind;
        Label1.Text = Convert.ToString(vastus);
    }
}