^fn 7 The auditor often plans to perform tests of controls concurrently with obtaining an understanding of internal control (see section 319.85) for the purpose of estimating the rate of deviation from the prescribed controls, as to either the rate of such deviations or monetary amount of the related transactions. Sampling, as defined in this section, applies to such tests of controls. [Footnote revised, May 2001, to reflect conforming changes necessary due to the issuance of Statement on Auditing Standards No. 94.]