(17)In order to increase the confidence in, and the liability of, the statutory auditors and the audit firms carrying out the statutory audit of public-interest entities, it is important that the transparency reporting by statutory auditors and audit firms be increased. Therefore, statutory auditors and audit firms should be required to disclose financial information, showing in particular their total turnover divided into audit fees paid by public-interest entities, audit fees paid by other entities and fees for other services. They should also disclose financial information at the level of the network to which they belong. Statutory auditors and audit firms should provide additional supplementary information on audit fees to competent authorities with a view to facilitating their supervisory tasks.