Как сложить общую сумму после скидки. Этот код используется в настоящее время?

Question

Обработка массовых действий из выбранных заказов

add_filter ('handle_bulk_actions-edit-shop_order', 'delivery_collect_calc_bulk_action_edit_shop_order', 10, 3); функция delivery_collect_calc_bulk_action_edit_shop_order ($ redirect_to, $ action, $ post_ids) {

if ( $action === 'delivery-collect' ) {
    $order_numbers    = []; // Initializing
    $cod_orders_total = 0; // Initializing
    $salary_per_order = 1.5;
    $second_number= 0


    foreach ( $post_ids as $post_id ) {
        // Get Order status
        $order = wc_get_order( $post_id );

        if( $order->get_payment_method() === 'cheque' ) {
            $cod_orders_total += (float) $order->get_total();
            $second_number += (float) $order->get_total_discount();
        }

        // Order status change to "completed" (To enable uncomment the line below)
        $order->update_status("completed");

        $order_numbers[] = $order->get_order_number(); // Adding processed order numbers to an array
    }

    $orders_count      = count( $order_numbers );
    $amount_to_collect = $cod_orders_total - $second_number ;