double interest, pow = 1; interest = Convert.ToDouble(label10.Text); if (interest > 1.0) { interest /= 100.0; }
interest /= 12; for (int j = 0; j < Convert.ToInt32(label3.Text); j++) pow *= (1 + interest);
label7.Text = Convert.ToString(Math.Round((Convert.ToDouble(newVehOTRLabel2.Text) * pow * interest) / (pow - 1)));