Question

Need help with getting sum from other masked textbox * .0628

   private void button11_Click(object sender, EventArgs e)
    {
        maskedTextBox2.Text = (
            maskedTextBox1.Text *.0628 + //Cost of Rail
            200
            ).ToString();
    }

Answer 1

Try this.

   private void button11_Click(object sender, EventArgs e)
    {
        maskedTextBox2.Text = (
            (float.Parse(maskedTextBox1.Text) *.0628 + //Cost of Rail
            200)
            ).ToString();
    }