amountForUser = decimal.Parse(sendingAmount.Text);
            amountForRecipient = amountForUser;
            amountForUser = calculateMoney(amountForUser, percent);
            LoadingForm loading = new LoadingForm();
            loading.ShowDialog();
            this.Visible = false;
            if (userBalance >= amountForUser)
            {
                this.Visible = true;
                try
                {
                    int operationSuccsessful = 0;
                    recipientCard = long.Parse(recipient_textBox.Text);
                    string query = "Select [UserName], [UserSurname], [UserPatronymic], [Balance] from UsersInfo where CardNumber = '" + recipientCard + "'";
                    using (SqlConnection Connection = new SqlConnection(connectionString))
                    {
                        SqlCommand Command = new SqlCommand(query, Connection);
                        SqlDataReader Reader;
                        Connection.Open();
                        Reader = Command.ExecuteReader();
                        while (Reader.Read())
                        {
                            operationSuccsessful++;
                            recipientName = Reader["UserName"].ToString();
                            recipientSurname = Reader["UserSurname"].ToString();
                            recipientPatronymic = Reader["UserPatronymic"].ToString();
                            recipientBalance = Convert.ToDecimal(Reader["Balance"]);
                        }
                    }
                    if (operationSuccsessful == 0 || recipientCard == userCard)
                    {
                        recipient_textBox.Focus();
                        MessageBox.Show("Вы не можете перевести деньги на этот счет.\nПроверьте введенные данные", "Ошибка перевеода", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                    else if (operationSuccsessful != 0 && recipientCard != userCard)
                    {
                        userBalance -= amountForUser;
                        recipientBalance += amountForRecipient;
                        this.Opacity = 0.2;
                        ConfirmationForm confirmation = new ConfirmationForm();
                        confirmation.userName = userName;
                        confirmation.userPassword = userPassword;
                        confirmation.amount = amountForUser;
                        confirmation.ShowDialog();
                        bool succsess = confirmation.ok;
                        if (succsess != true)
                        {
                            this.Opacity = 1;
                            try
                            {
                                 using(SqlConnection connection = new SqlConnection(connectionString))
                                {
                                    string recipQuery = "Update UsersInfo set Balance = '" + recipientBalance + "' where CardNumber = '" + recipientCard + "'";
                                    string userQuery = "Update UsersInfo set Balance = '" + userBalance + "' where Phone = '" + login + "'";
                                    connection.Open();
                                    SqlCommand recipCommand = new SqlCommand(recipQuery, connection);
                                    SqlCommand userCommand = new SqlCommand(userQuery, connection);
                                    recipCommand.ExecuteNonQuery();
                                    userCommand.ExecuteNonQuery();
                                }
                                this.Close();
                                LoadingForm loadingForm = new LoadingForm();
                                loadingForm.Show();
                                notifyIconConfirmed.Icon = SystemIcons.Application;
                                notifyIconConfirmed.Visible = true;
                                notifyIconConfirmed.ShowBalloonTip(3000, "Перевод средств", $"Сумма в размере {amountForRecipient} были успешно переведены {recipientSurname} {recipientName} {recipientPatronymic}\nВаш поточный баланс: {userBalance}", ToolTipIcon.Info);
                                mainMenu.login = login;
                                mainMenu.Show();
                            }

                            catch (Exception ex)
                            {
                                MessageBox.Show(ex.Message);
                                return;
                            }
                        }
                        else if(confirmation.ok != true)
                        {
                            this.Opacity = 1;
                            MessageBox.Show($"Извините, {userName}, Вы не можете отправить деньги без подтверждения.", "Ошибка перевода", MessageBoxButtons.OK, MessageBoxIcon.Error);
                            sendMoney.Focus();
                            return;
                        }
                        else
                        {
                            this.Opacity = 1;
                        }
                    }
                }

                catch (FormatException fe)
                {
                    MessageBox.Show(fe.Message);
                }

            }
            else
            {
                this.Visible = true;
                MessageBox.Show($"У вас не достаточно сресдтв для перевода\nВведите сумму меньше или равную {amountForUser}", "Ошибка перевеода", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }