howhatwhy.com

Financial Modeling: What It Is, How to Build It, and a Case Study


What is Financial Modeling?

Imagine being able to predict the future of your business, make smarter investment decisions, and turn raw numbers into a clear roadmap for growth. That’s exactly what financial modeling does—it transforms complex financial data into actionable insights, helping entrepreneurs, investors, and professionals make decisions with confidence. Whether you’re planning a startup, evaluating a new project, or managing an existing business, mastering financial modeling can be your ultimate game-changer.

Financial modeling is a critical tool in corporate finance, investment analysis, and strategic decision-making. It allows analysts, investors, and business leaders to forecast a company’s financial performance, evaluate investment opportunities, and make informed decisions.

Financial modeling is the process of creating a mathematical representation of a company’s financial performance. Typically built in Excel or other spreadsheet tools, a financial model uses historical data and assumptions about the future to predict revenue, expenses, cash flows, and profitability.

Key purposes of financial modeling include:


How to Build a Financial Model

Financial Modeling

Building a financial model requires both financial knowledge and technical skills in Excel or similar tools. Here’s a step-by-step approach:

1. Gather Historical Data

Collect at least 3–5 years of financial statements, including:

2. Identify Key Drivers

Determine the main variables that influence the company’s financial performance, such as:

3. Build Assumptions

Assumptions are the foundation of your model. For example:

4. Forecast Financial Statements

Using historical data and assumptions, project:

5. Conduct Scenario Analysis

Evaluate different situations such as:

6. Perform Valuation

Use methods like:

7. Make Decisions


TrendMart’s Journey: How Financial Modeling Guided a Smart Online Expansion

Meet Rohit, a passionate entrepreneur running TrendMart, a small retail store in his hometown. For years, Rohit had a loyal local customer base, but he wanted to expand online to tap into a larger market. The big question:

“Is going online financially feasible, or will it drain my resources?”

To answer this, Rohit turned to financial modeling.


Step 1: Looking Back – Understanding the Past

Rohit started by analyzing TrendMart’s historical performance:

YearRevenue (₹M)Net Profit (₹M)
2022505
2023606
2024707

Revenue grew steadily, and net profit hovered around 10% of revenue. This gave Rohit a solid base for future projections.


Step 2: Identifying Key Drivers

Next, Rohit worked with a financial analyst to identify key drivers for his online expansion:

How Key Drivers Are Determined

Drivers are the variables that directly affect financial performance. Analysts identify them by studying the business model, industry, and past data.

For TrendMart (a retail business going online), the key drivers were:


Step 3: Making Realistic Assumptions

Together, they agreed on the following assumptions:

These assumptions became the backbone of TrendMart’s financial model.

The strength of a financial model lies in how realistic and justifiable the assumptions are. A smart analyst:


Step 4: Forecasting the Future

Using the model, Rohit projected revenues, profits, and cash flow for the next 3 years.

YearRevenue (₹M)Gross Profit (₹M)Operating Expenses (₹M)Expansion Cost (₹M)Net Profit (₹M)
2025803216106
20269236.818.4018.4
202710642.421.2021.2

Step-by-step calculations for 2025:

This forecast gave Rohit a clear picture of profitability under the expansion plan.


Step 5: Valuation Using Discounted Cash Flow (DCF)

Rohit wanted to know the value his business could achieve with an online presence. Using a simplified DCF approach:

Step 5a: Free Cash Flow (FCF)

YearNet Profit / FCF (₹M)
20256
202618.4
202721.2

Free Cash Flow is the cash available to investors (debt + equity holders) after the company pays for:

👉 Formula (simplified):

FCF=EBIT×(1−Tax Rate)+Depreciation−CapEx−ΔWorking Capital

In practice, analysts often adjust based on data availability. For smaller case studies (like TrendMart), we sometimes approximate FCF ≈ Net Profit if depreciation, taxes, and working capital changes are small or stable.

In real-world corporate models, FCF requires:

Step 5b: Present Value of Cash Flows

PV=FCF​/(1+r)^t

Where r = 12% discount rate, t = year number

Total Present Value (EV) = 5.36 + 14.66 + 15.1 ≈ ₹35.1M

👉 This is the Enterprise Value of TrendMart based on our simplified 3-year model.

Note: A full DCF would include a terminal value, but even this simplified model shows the financial upside of going online.


Step 6: Scenario Analysis – Preparing for Uncertainty

Rohit tested different growth scenarios:

This risk assessment helped him plan contingencies, like phasing marketing spend or gradual rollout, if online adoption was slower.


Step 7: Making the Decision – Go Online or Not?

The financial model guided Rohit in multiple ways:

  1. Profitability check: Even after the ₹10M expansion cost, profits remain positive.
  2. Cash flow planning: He knew exactly how much funding was needed upfront.
  3. Risk assessment: Scenario analysis prepared him for slow or fast growth.
  4. Valuation insight: The online expansion could significantly increase TrendMart’s worth, attracting potential investors.
  5. Timing strategy: He could plan when to spend on marketing and platform development to optimize returns.

✅ With these insights, Rohit made a data-driven decision: he would expand online, confident that TrendMart could grow sustainably and profitably.


Considering Terminal Value

Let’s extend the TrendMart case with a Terminal Value (TV) to get a more realistic Enterprise Value (EV).


Step 1: Recap of Free Cash Flows (FCFs)

From TrendMart’s online expansion model:

YearForecast FCF (₹M)
20256.0
202618.4
202721.2

We will now discount these to present value (PV).

Discount rate (WACC) = 12%.

PV=FCF/(1+r)^t

👉 Sum of 3-year PVs = 35.12M


Step 2: Add Terminal Value (TV)

Since businesses don’t stop after 3 years, we estimate a terminal value from 2027 onward.

We’ll use the Gordon Growth Method: TV=FCF2027×(1+g)/(r−g)

Where:

TV=21.2×1.04/(0.12−0.04)

TV=22.048/0.08=275.6


Step 3: Discount the Terminal Value

PV(TV)=275.6(1.12)^3

PV(TV) ≈ 275.6/1.4049 ​≈ 196.2M


Step 4: Enterprise Value (EV)

EV=PV(FCFs)+PV(TV)

EV=35.12M+196.2M=231.3M

👉 Enterprise Value of TrendMart ≈ ₹231M


Step 5: Equity Value

If TrendMart has:

Then, Equity Value=EV−Debt+Cash

Equity Value=231.3−30+5=206.3M

So the shareholders’ value of TrendMart is about ₹206M.


Why This Matters for Rohit’s Decision

In short: Adding the terminal value makes the model realistic, showing that TrendMart’s long-term value creation is far greater than the near-term profits.


Key Takeaways


Call to Action

“Don’t leave your business decisions to guesswork—start building your financial model today and take control of your financial future. Download our free template, explore step-by-step examples, and turn numbers into actionable insights!”

Read more blogs here.

Here’s a good reference link for financial modeling (concepts, examples, templates):

11 Financial Modeling Examples & Templates for 2025

Exit mobile version