Continuous listing from a custom field

First of all, please don’t use query_posts, but a new WP_Query.

Outpu count based on page is just a matter of a simple arithmetic operation using current page number and posts per page number.

global $wp_query;
$paged = $wp_query->get('paged') ? : 1;
$posts_per_page = 10; // feel free to change this
$args = array(
  'cat'            => 47,
  'meta_key'       => 'cb_vote_nb_vote',
  'orderby'        => 'meta_value',
  'order'          => 'DESC',
  'paged'          => $paged,
  'posts_per_page' => $posts_per_page
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) : while ( $query->have_posts() ) : $query->the_post();

  $current_order = ( $query->current_post + 1 ) + ( $posts_per_page * ( $paged - 1) );
  echo 'Current post order is :' . $current_order;

endwhile; endif;
wp_reset_postdata();