public function column_subtotal( $item ) {
		$total = 0;

		foreach ( $this->valid_order_items[ $item['id'] ] as $line_item ) {
			$total += $line_item['subtotal'];
		}

		if ( ! self::$pass_fees_to_user ) {
			$total -= self::calc_site_fee( $total );
		}

		return tribe_format_currency( number_format( $total, 2 ) );
	}//end column_subtotal