protected void btnInputMPG_Click(object sender, EventArgs e)
        {
            var urban = Decimal.Parse(txtUrban.Text);
            var extraUrban = Decimal.Parse(txtExtraUrban.Text);
            var combined = Decimal.Parse(txtCombined.Text);

            DataProcessor processor = new DataProcessor();
            processor.SetMPG(urban, combined, extraUrban);
            divInputMPG.Visible = false;
            divSuccess.Visible = true;
        }
        protected void btnInputMPG_Click(object sender, EventArgs e)
        {
            var urban      = Decimal.Parse(txtUrban.Text);
            var extraUrban = Decimal.Parse(txtExtraUrban.Text);
            var combined   = Decimal.Parse(txtCombined.Text);

            DataProcessor processor = new DataProcessor();

            processor.SetMPG(urban, combined, extraUrban);
            divInputMPG.Visible = false;
            divSuccess.Visible  = true;
        }