"Twenty Percent" typically refers to a fraction or percentage that represents one-fifth of a whole. In various contexts, it can indicate a portion of a total amount, such as a discount, tax, or profit. For example, if an item costs $100, a twenty percent discount would reduce the price by $20, making it $80. In business, the term can also relate to the Pareto Principle, which suggests that roughly 80% of effects come from 20% of causes. This principle is often applied in areas like sales, where a small percentage of customers may generate the majority of revenue.