What is materiality and inmateriality in an audit?

Materiality is the magnitude of an omission or misstatement of accounting information that, in the light of surrounding circumstances, makes it probable that the judgment of a reasonable person relying on the information would have been changed or influenced by the omission or misstatement. While that the relevant financial statement bases and presumptions on the effect of combined misstatements or omissions that would be considered Immaterial. It does not affect the financial statement.