Show Progress When Uploading file to google drive in Flutter

How to show the progress, of files being uploaded to google drive in flutter? below is my code, how can I rewrite it to show the progress in percentage?

Not mean progress bar, I just want to show the progress percentage. Thanks.

    await driveApi.files
            .create(
          fileToUpload,
          supportsAllDrives: true,
          uploadMedia: drive.Media(
            zipFile.openRead(),
            zipFile.lengthSync(),
          ),
        )
            .then((value) async {
          await zipFile.delete();
          ScaffoldMessenger.of(context).showSnackBar(
            const SnackBar(
              content: Text('File uploaded successfully'),
            ),
          );
        });