Not capable of fetch woocommerce variation gross sales merchandise for specific class merchandise

Not capable of fetch variation gross sales product in response to specific product class . My code fetch solely easy merchandise not variable merchandise.

  $cat_id = $_GET['catid'];

  $args = array(    
'post_type'             => 'product',
'post_status'           => 'publish',
'posts_per_page'        =>-1, 
'meta_query'     => array(
    'relation' => 'OR',
  array( // Variable merchandise sort
        'key'           => '_min_variation_sale_price',
        'worth'         => 0,
        'examine'       => '>',
        'sort'          => 'numeric'
    ),
    array( // Easy merchandise sort   
        'key'           => '_sale_price',
        'worth'         => 0,
        'examine'       => '>',
        'sort'          => 'numeric'
    )
    ),
'tax_query'             => array(
    array(
        'taxonomy'      => 'product_cat',
        'discipline' => 'term_id', //That is elective, because it defaults to 'term_id'
        'phrases'         => $cat_id,
        'include_children' => true,
        'operator'      => 'IN' // Doable values are 'IN', 'NOT IN', 'AND'.
    )
    )

);
$merchandise = new WP_Query($args);