using System;

public class Program

{

    public static void Main()

    {

        decimal? i = 59.0050000000m;

        var d = Convert.ToDecimal(i.GetValueOrDefault().ToString("G29"));

        Console.WriteLine("G29 format: {0}", d);

        var e = Convert.ToDecimal(i.GetValueOrDefault().ToString("F2"));

        Console.WriteLine("F2 format: {0}", e);

    }

}