using System;

using System.Collections.Generic;

using Newtonsoft.Json;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        double value1 = 198.275;

        double value2 = 273.275;

        Console.WriteLine("Round: " + Math.Round(value1, 2, MidpointRounding.AwayFromZero));

        Console.WriteLine("Round: " + Math.Round(value2, 2, MidpointRounding.AwayFromZero));

        Console.WriteLine();

        Console.WriteLine("ToString #: " + (value1).ToString("#.##", CultureInfo.InvariantCulture));

        Console.WriteLine("ToString #: " + (value2).ToString("#.##", CultureInfo.InvariantCulture));

        Console.WriteLine();

        Console.WriteLine("ToString N: " + (value1).ToString("N", CultureInfo.InvariantCulture));

        Console.WriteLine("ToString N: " + (value2).ToString("N", CultureInfo.InvariantCulture));

    }

}