Adding Price in WooCommerce New Customer Order Email Subject

gistfile1.txt

//woocommerce documentaiton http://docs.woothemes.com/document/change-email-subject-lines/

add_filter('woocommerce_email_subject_new_order', 'cbwoocommerce_neworder_email_subject', 1, 2);
/**
 * @param $subject
 * @param $order
 *
 * @return string
 */
function cbwoocommerce_neworder_email_subject( $subject, $order ) {
    global $woocommerce;
    $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
    $currency  = get_woocommerce_currency();
    $order_total =  $order->get_total() ;
    $subject = sprintf( '[%s] New Customer Order (# %s) - %s ' , $blogname , $order->id , $currency.$order_total );
    return $subject;
}