using System;

public class Program

{

    public static void Main()

    {

        decimal val1 = 0m;

        decimal val2 = 125580m;

​

        Console.WriteLine(val1.ToString("0.00"));

        //Output 0.00

        Console.WriteLine(val2.ToString("0.00"));

        //Output 125580.00

        //Money format

        Console.WriteLine(val1.ToString("C"));      

        //Output $0.00

        Console.WriteLine(decimalToFormattedString(val1));

        //Output 0.00

        Console.WriteLine(decimalToFormattedString(val2));

        //Output 125580.00

    }

    public static string decimalToFormattedString(decimal myValue)

    {   

        return myValue.ToString("0.00");

    }

}