using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(Convert.ToDecimal(Math.Round(0.644971, 2,MidpointRounding.AwayFromZero)));

        Console.WriteLine(Convert.ToDecimal(Math.Round(0.644971, 2,MidpointRounding.AwayFromZero).ToString("#0.00")));

        Console.WriteLine(41-.065);

        Console.WriteLine(Math.Round((41-.065), 2,MidpointRounding.AwayFromZero).ToString("#0.00"));

        Console.WriteLine(Convert.ToDecimal(Math.Round((40.94+ .064), 2,MidpointRounding.AwayFromZero)).ToString("#0.00"));

        Console.WriteLine("----------------");

        Console.WriteLine(Convert.ToDecimal(Math.Round(0.644971, 4)));

        Console.WriteLine(Convert.ToDecimal(Math.Round(0.644971, 4).ToString("#0.00")));

        Console.WriteLine(41-.065);

        Console.WriteLine(Math.Round((41-.065), 4).ToString("#0.00"));

        Console.WriteLine(Convert.ToDecimal(Math.Round((40.94+ .064), 4)).ToString("#0.00"));

    }

}