using System;

using System.Runtime.Serialization;

​

​

public class Program

{

    public static void Main()

    {

        double amount = 999.70;

        double amount2 = 999.9200;

        amount = Math.Round(amount, MidpointRounding.AwayFromZero);

        amount2 = Math.Round(amount2, MidpointRounding.AwayFromZero);

        Console.WriteLine(amount);

        Console.WriteLine(amount2);

    }

}