How to show top selling items on EDD

Use this query for showing top selling items.

$popular_items = new WP_Query (array(
	'post_type' => 'download',
	'orderby'   => 'meta_value_num',
	'meta_query'     => array(
		'relation' => 'AND',
		array(
			'key'     => '_edd_download_sales',
			'compare' => '>',
			'value'   => 0,
			'order'   => 'DESC',
		),
	),
	'posts_per_page' => 3
));