How to Do Scenario Analysis in Excel

“What if…?”

It’s a question every organization should ask and be able to answer with confidence. That’s the essence of scenario analysis: testing variables to better understand potential future outcomes.

From capital investments to pricing strategies, decisions are stronger when you can see how they play out under different conditions.

For many, Excel is the go-to tool for data analysis. It’s familiar, inexpensive (often free with existing licenses), and widely used. Most professionals know their way around a spreadsheet, and seasoned analysts can make Excel sing.

But Excel’s flexibility is also its greatest weakness. Models are often built from scratch, which can be time-consuming, inconsistent, and prone to errors that can undermine decision-making.

So, the real question is: Do we use Excel because it’s the best tool for scenario analysis, or simply because it’s the tool we're familiar with?

In this post, we’ll explore how to conduct scenario analysis in Excel, along with the strengths and shortcomings of relying on it for financial modeling and budget planning.

An Intro to Excel Scenario Analysis

Scenario analysis is one of the three “What-If Analysis” tools available in Excel. Each scenario can house up to 32 variables.

Let’s say a financial analyst wants to understand revenue using different prices and sales projections. The analyst can simply enter the variables (e.g., price, items sold) into Excel and create a formula to get the revenue (e.g., price x items sold = revenue):

Next, the analyst can save the formula as a scenario. From the What-If Analysis option in the Data Tab, navigate to the Excel Scenario Manager and click Add. Before saving, variable cells (called changing cells) can be adjusted so the scenario is ready for future use.

In this example, sales of 2,500 items represent the best-case scenario. If the analyst wants to project revenue for 1,000 items sold, they can simply update the variables and save them as a new scenario.

To compare scenarios side by side, users can create a Scenario Summary Report in Excel. These reports are displayed in Pivot Table format, with variable cells automatically highlighted and grouped for easy navigation. This eliminates the need to manually build a separate summary page, saving time and reducing setup effort.

One caveat: Summary reports are not dynamic. If the underlying scenario data changes, the report will not automatically update. A new report must be created.

Building More Complex Scenarios

Naturally, most businesses juggle far more than a single variable when running scenarios, especially for complex projects like budgeting. On top of that, leadership often prefers to review outcomes in familiar formats, such as financial statements.

Excel supports these larger, more complex projects with its Merge Scenario Wizard. This feature lets users pull data from multiple worksheets into a single, large-scale scenario. From there, you can select which variables to include and build a consolidated view.

For example, imagine an analyst wants to compare projections across five products. With the Merge Scenario Wizard, they can combine data from each product sheet into one scenario and decide which fields to include (e.g., revenue cells only).

This flexibility makes it easy to focus on the most relevant metrics while keeping presentations clear, concise, and aligned with what decision-makers need to see.

Scenario Analysis in Excel: The Pros

Excel is an inexpensive and readily accessible spreadsheet tool. Odds are your organization already uses Excel or another spreadsheet program for some activities. In this sense, using Excel for scenario analyses saves time and money because you won’t have to buy new software or train employees on how to use it.

Excel also gives users the freedom to build their spreadsheets from the ground up. Custom line items, report formatting, and much more can be accommodated at the request of leadership.

While there will always be a need for detailed scenario analysis, business owners often need simple, straightforward calculations. Excel is perfect for these simpler scenarios and will take even modestly experienced users little time to run.

The Cons of Creating Scenarios in Excel

While Excel can handle in-depth scenario analyses, its limitations quickly become apparent.

For starters, the number of sheets required to test multiple scenarios can become unwieldy. Gathering the necessary financial data often involves coordinating with several departments, which adds complexity and slows the process.

Collaboration and version control are also challenges. Even with OneDrive for Business, a lack of coordination can result in overwritten files or missed updates. More often than not, spreadsheets are still emailed around, making it difficult to ensure everyone is working from the correct version.

Excel’s advanced features, like the Merge Scenario Wizard, come with strict requirements. All worksheets must follow the exact same structure; if “Items Sold” is in cell A2 on one sheet, it must be identical across all sheets. Any inconsistencies can cause errors, forcing teams to spend significant time troubleshooting.

Finally, building and maintaining complex spreadsheets is time-consuming. When the person who created the workbook leaves, successors often struggle to decipher the formulas and logic, leading to frustration and inefficiency.

Templates Are Helpful, To a Point…

You might be thinking, “Why not just grab a free template online?”

While there are plenty of financial templates available, almost all of them will require some level of customization to fit your company’s specific needs.

The risk? Without a clear understanding of how the template was built, it’s easy to overlook hidden formulas or make incorrect assumptions that could lead to inaccurate scenario projections.

Financial Modeling Tools: A Better Option

Creating a scenario in Excel demands technical expertise, hours of setup, and meticulous organization. For many companies, the effort simply outweighs the benefits.

Fortunately, there’s a better way. Scenario analysis tools like Synario eliminate the manual headaches of financial modeling, empowering you to focus on strategic decisions and the future growth of your business.

Easier Control Over Scenario Analysis

Synario’s patented Multiverse Modeling™ gives analysts access to flexible and adaptable assumption tables.

This allows users to create initiatives around key factors such as capital expenditures, personnel changes, sales growth, and more. Users can then toggle these initiatives on and off or adjust values in sliders to view real-time updates for different scenarios.

For example, let’s say a manufacturing company needs to run scenario analyses that take the following into account:

• The purchase of new equipment, which is considered a capital expenditure
• Sales projections based on the last five years of sales history
• Hiring new workers to operate the new equipment

With Synario, each of these can be built into initiatives. Analysts can then create different scenarios using different initiative combinations. For example, what would the capital expenditure burden look like without the projected sales growth?

These capabilities make it possible to run scenario analyses in real time during presentations, enabling dynamic, engaging discussions that drive informed decisions. Synario’s drill-down functionality reveals the underlying calculations for complete transparency, ensuring stakeholders can see exactly how results are derived.

Unlike Excel, which often requires endless follow-ups and emails to answer lingering questions, Synario streamlines analysis and fosters faster, more confident decision-making.

It's Time to Move Beyond Excel

You might be thinking, “I already use Excel for my finances … why not just stick with it?”

While Excel is familiar and flexible, it’s best to view it as a stepping stone to more powerful tools. As your company grows, scenario analysis becomes increasingly complex: more variables, more outcomes, and higher stakes.

Excel’s static structure means every new “what-if” requires another spreadsheet. Tracking multiple scenarios quickly becomes cumbersome, increasing the risk of decisions based on outdated or incomplete information.

Thankfully, modern financial tools can integrate seamlessly with Excel. With Synario, for example, you can import existing financial data directly using Excel templates and immediately begin running scenario analyses with live financial statements. The difference in efficiency and clarity is immediate.

Ready to level up your scenario planning? We’re here to help you get started.