Get post_meta of children and compare to current page ID

Here is the code that ended up working for me:
<?php
  $mypages = get_pages( array( 'child_of' => $post->ID, 'sort_column' => 'menu_order', 'sort_order' => 'asc' ) );
  foreach( $mypages as $page ) {         
  $content = $page->post_content;
  $content = apply_filters( 'the_content', $content );
  $price = get_post_meta( $page->ID, 'price', true );
?>
<div class="service">
<h4><a href="https://wordpress.stackexchange.com/questions/126795/<?php echo get_page_link( $page->ID ); ?>"><?php echo $page->post_title; ?></a></h4>
<div class="price"><?php echo $price; ?></div>
<p><?php echo $content; ?></p>
<p><?php
      $currentPageID = $page->ID;
  $child_pages = $wpdb->get_results("SELECT *    FROM $wpdb->posts WHERE post_parent =2526 AND post_type="page" ORDER BY menu_order", 'OBJECT');
  if ( $child_pages ) : foreach ( $child_pages as $pageChild ) : setup_postdata( $pageChild );
  $services = get_post_meta( $pageChild->ID, 'services', true );
      if (preg_match('/(^|,| )'.$currentPageID.'($|,| )/', $services, $matches)){
  echo "<a class="promotion-link" href="" . get_permalink("2526') . "'>A promotion is available for this service</a><br/>" ;
  //  echo "matches";
}
endforeach; endif;
?>
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