What-If Analysis

What-if analysis is a technique used to evaluate the impact of changing certain variables or assumptions within a financial model. By altering specific inputs, decision-makers can observe the potential effects on key outcomes, such as revenue, net income, or cash flow. This method is fundamental to understanding the cause-and-effect relationships that govern business performance.

In practice, what-if analysis allows an FP&A team to answer targeted questions like, "What happens to our EBITDA if our largest supplier increases prices by 5%?" or "How does a 2-month delay in a product launch affect our annual revenue forecast?" This process supports agile financial planning by helping organizations test hypotheses and assess risks before committing to a course of action.

While closely related to scenario planning, what-if analysis typically focuses on the isolated impact of one or two variable changes. In contrast, scenario planning often involves a more comprehensive set of changes to model a complete future state, such as a best-case or worst-case scenario.