A code snippet upload file using FTP. With some tweak, we could also get the percentage out of this.

        void FTPUpload(string filename, string username, string password, string UploadTo)
        {

            FileInfo fileInf = new FileInfo(filename);
            FtpWebRequest reqFTP;
            // Create FtpWebRequest object from the Uri provided
            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(UploadTo + fileInf.Name));
            // Provide the WebPermission Credintials
            reqFTP.Credentials = new NetworkCredential(username, password);
            //Disconnect when finish
            reqFTP.KeepAlive = false;
            // Request upload file.
            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
            // Using Binary so we could upload whatever we want
            reqFTP.UseBinary = true;
            // Send the size of fize
            reqFTP.ContentLength = fileInf.Length;
            // The buffer size is set to 2kb
            int buffLength = 2048;

            //Arry to store read file
            byte[] buff = new byte[buffLength];
            int contentLen;

            // Opens a file stream (System.IO.FileStream) to read the file to be uploaded
            FileStream fs = fileInf.OpenRead();
            try
            {
                // Stream to which the file to be upload is written
                Stream strm = reqFTP.GetRequestStream();

                // Read from the file stream 2kb at a time
                contentLen = fs.Read(buff, 0, buffLength);

                // Till Stream content ends
                while (contentLen != 0)
                {
                    // Write Content from the file stream to the FTP Upload Stream
                    strm.Write(buff, 0, contentLen);
                    contentLen = fs.Read(buff, 0, buffLength);
                }

                // Close the file stream and the Request Stream
                strm.Close();
                fs.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Upload Error");
            }
        }