public static double RoundUp(double input, int places)
{
    double multiplier = Math.Pow(10, Convert.ToDouble(places));
    return Math.Ceiling(input * multiplier) / multiplier;
}

RoundUp(189.182, 2);

n = System.Math.Ceiling (n * 100) / 100;

0.01 * ceil(100 * 189.182)

Math.Round(189.182, 2)