Which function is most likely to enhance the performance of a planning tool?

The performance of a planning tool can be greatly enhanced through the precalculation of formula values. This approach allows complex calculations to be completed in advance, rather than being performed in real-time during data input or report generation. As a result, users experience faster response times and reduced load on the system, which leads to a more efficient planning process. Precalculation can also aid in optimizing resource allocation and improving the overall user experience. By ensuring that formulas are calculated before they are needed, the system minimizes latency and can handle larger datasets more effectively, ultimately supporting better decision-making based on timely access to insights.

In contrast, the other options—such as manual data entry, frequent updates without testing, and restricting data availability—can hinder performance and create inefficiencies. Manual data entry is often slower and more prone to errors, repetitive updates without testing can introduce instability, and limiting data access can restrict the comprehensiveness of analyses needed for informed decision-making.