A calculated field within a pivot table is a user-defined formula that performs computations using data already present in the pivot table. These formulas allow for the derivation of new insights by combining or transforming existing data points. For instance, a calculated field could compute a profit margin percentage by dividing profit by revenue, offering a succinct representation of profitability for different product categories.
Modifying these formulas offers a powerful mechanism for refining analyses and adapting reports to evolving business needs. This capability enhances the flexibility of pivot tables, allowing users to dynamically adjust computations to explore different scenarios or correct errors in initial formulations. The ability to readily revise formulas ensures that data analyses remain accurate and relevant over time.