Buying an existing business can be an excellent investment.
But before committing your money, you need to answer one critical question:
Is this business actually worth the price being asked?
The process is not complicated, but it requires discipline and a few basic calculations.
To illustrate the process, let’s walk through a practical example.
Step 1: Verify the Revenue
The first step is always the same: verify the real revenue of the business.
Imagine a gym in your area is for sale.
The owner claims the gym has:
- 400 active members
- an average membership fee of $50 per month
That means monthly revenue should be:
400 × $50 = $20,000
Annual revenue:
$20,000 × 12 = $240,000
But before trusting these numbers, you should verify them through:
- bank statements
- payment processor reports
- accounting records
- membership contracts
Many buyers skip this step and rely on the owner’s word — which is a mistake.
Step 2: Calculate the Real Profit
Revenue alone does not tell you whether the business is profitable.
You must subtract all operating expenses.
Example Annual Expenses
| Expense | Annual Cost |
|---|---|
| Rent | $60,000 |
| Staff salaries | $80,000 |
| Utilities | $15,000 |
| Equipment maintenance | $10,000 |
| Insurance | $5,000 |
| Marketing | $10,000 |
Total expenses: $180,000
Net Profit
Revenue: $240,000
Expenses: $180,000
Net profit: $60,000
This is the number that really matters.
Everything else is secondary.
Step 3: Compare With Market Multiples
Most small businesses are valued using profit multiples.
Typical ranges:
| Business type | Typical multiple |
|---|---|
| Small local business | 2× – 4× annual profit |
If this gym generates $60,000 per year, the valuation range could be:
| Multiple | Estimated Value |
|---|---|
| 2× profit | $120,000 |
| 3× profit | $180,000 |
| 4× profit | $240,000 |
If the owner asks $300,000, the price may already be too high.
But we still need to analyze further.
Step 4: Calculate Your Return
If you buy the gym for $300,000 and the profit remains $60,000 per year, your return would be:
ROI=60,000/300,000
ROI = 20% annually
That is significantly higher than many passive investments.
But we must also consider risk and future cash flows
Step 5: Estimate Future Cash Flow
Suppose the gym’s profits grow slightly over time.
Projected Cash Flow
| Year | Profit |
|---|---|
| Year 1 | $60,000 |
| Year 2 | $62,000 |
| Year 3 | $64,000 |
| Year 4 | $66,000 |
| Year 5 | $68,000 |
Now we discount these profits using a 5% discount rate.
Discounted Cash Flow
| Year | Profit | Present Value |
|---|---|---|
| 1 | $60,000 | $57,143 |
| 2 | $62,000 | $56,217 |
| 3 | $64,000 | $55,309 |
| 4 | $66,000 | $54,417 |
| 5 | $68,000 | $53,541 |
Total present value of cash flows:
≈ $276,627
Step 6: Estimate the Resale Value
If you plan to sell the business in five years, you must estimate its resale value.
Suppose the gym is expected to earn $70,000 annually by that time.
If the market multiple is 3× profit, the business could sell for:
Discounted to today: ≈ $164,000
Step 7: Calculate Net Present Value
Total present value of profits: $276,627
Estimated resale value: $164,000
Total value: $440,627
Purchase price: $300,000
NPV ≈ $140,627
Because the NPV is positive, the investment appears attractive under these assumptions.
Three Numbers That Reveal a Bad Business Quickly
Experienced investors often focus on three key numbers:
- Revenue stability
If revenue fluctuates dramatically, risk increases. - Fixed costs
High fixed costs make businesses fragile during downturns. - Profit margin
Low margins leave little room for error.
If any of these numbers look weak, the investment becomes much riskier.
What Sellers Should Understand
From the seller’s perspective, the value of a business usually depends on:
- annual profit
- growth potential
- market demand
- industry multiples
Owners often overestimate the value of their business because they focus on effort and emotional attachment rather than financial performance.
Buyers focus only on future cash flow.
The Key Principle
The value of any business ultimately comes down to one thing:
How much cash it will generate in the future.
Everything else — brand, equipment, location — only matters if it contributes to that cash flow.
Understanding this principle allows investors to evaluate businesses logically rather than emotionally.
