NUnit Test problem

using System;
using System.Collections.Generic;
using System.Text;
using NUnit.Framework;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
        }

        public float balance;

        public void Deposite(float amount)
        {
            balance += amount;
        }

        public void withdraw(float amount)
        {
            balance -= amount;
        }

        public void TransferFunds(Program destination, float amount)
        {
        }

        public float Balance
        {
            get { return balance; }
        }

        public static void testmethod()
        {
            Program a1 = new Program();
            a1.Deposite(200.00f);
            Program a2 = new Program();
            a2.Deposite(15.00f);
            a1.TransferFunds(a2, 100.00f);
            Program.Equals(250.00f, a2.balance);
            Program.Equals(100.00f, a1.balance);
        }
    }

    [TestFixture()]
    public class Calculator_UnitTest
    {
        Program a1 = new Program();

        [SetUp()]
        public void Init()
        {
            // some code here, that need to be run
            // at the start of every test case.
        }

        [TearDown()]
        public void Clean()
        {
            // code that will be called after each Test case
        }

        [Test]
        public void Test()
        {
            Program a1 = new Program();
            a1.Deposite(200.00f);
            Program a2 = new Program();
            a2.Deposite(15.00f);
            a1.TransferFunds(a2, 100.00f);
            Program.Equals(250.00f, a2.balance);
            Program.Equals(100.00f, a1.balance);
       }
   }
}