[The following paragraph was effective for periods ended on or after June 25, 1983. It was amended, effective for audits of fiscal years beginning on or after December 15, 2010. See PCAOB Release No. 2010-004.

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Evaluation in monetary terms of the results of a sample for a substantive test of details contributes directly to the auditor's purpose, since such an evaluation can be related to his judgment of the monetary amount of misstatements that would be material. When planning a sample for a substantive test of details, the auditor should consider how much monetary misstatement in the related account balance or class of transactions may exist without causing the financial statements to be materially misstated. This maximum monetary misstatement for the balance or class is called tolerable misstatement for the sample. Tolerable misstatement is a planning concept and is related to the auditor's preliminary judgments about materiality levels in such a way that tolerable misstatement, combined for the entire audit plan, does not exceed those estimates.