using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(0.125m.ToString("F2", CultureInfo.InvariantCulture)); // 0.13

        Console.WriteLine(0.125.ToString("F2", CultureInfo.InvariantCulture)); // 0.12

        Console.WriteLine(Math.Round(0.125m, 2));

        Console.WriteLine(Math.Round(0.125, 2));

    }

}