Final answer:
The concept mentioned in the student's question, which permits ignoring trivial monetary amounts in decision-making, is known as the Materiality Concept in the field of business and accounting.
Step-by-step explanation:
The concept described in the student's question, which states that information must be significantly large enough to influence any users or decision-makers, is known as the Materiality Concept. In accounting and finance, this principle allows accountants to ignore trivial amounts of money that would not affect a user's decision.
Despite being suspended for the purpose of a course where every penny is counted for an individual named Terry, the materiality concept generally operates in the real world where decisions are made based on the significance of financial information.