What Is Cost-Benefit Analysis, How Is it Used, What Are its Pros and Cons

Written by
Aaron Oh
Published on
February 19, 2024


Rachel, an enthusiastic entrepreneur who operates an online jewellery store, finds herself at a crossroads: Should she give her website a makeover? 

The idea sounds really exciting; it could add some unique designs to the website and boost sales.

However, there's a hurdle: the overhaul comes with expenses for a new design, content migration, staff training, and potential website downtime. 

Despite the costs, Rachel envisions a brighter future where the revamped website attracts more customers, boosts sales, reduces customer inquiries, and amplifies her brand's allure. 

How can she determine if the makeover is worthwhile?

By carefully analysing the costs and benefits, factoring in an 8% interest rate, Rachel can gauge the potential return on investment. 

If the calculations reveal that the benefits outweigh the expenses, Rachel may eagerly embrace the change, viewing this pivotal decision as an exciting progression in her business journey. 

Through this process, the cost-benefit analysis is a valuable tool for Rachel to make informed decisions about resource allocation and business strategy.

What Exactly Is The Cost-Benefit Analysis (CBA)?

Well, the cost-benefit analysis is a systematic process to analyse which decisions to make and which to forgo. 

So, you are basically summing up the potential rewards expected from a situation or action and then subtracting the total costs associated with taking that action. 

By using estimated costs and carefully weighing the pros and cons, this analysis helps you decide whether a specific project or decision is worth pursuing. This ultimately assists the decision making process for you in making smarter choices about where to invest your resources.

Now that you know what is cost-benefit analysis, let’s look at how to do a cost-benefit analysis.

How to do a Cost-Benefit Analysis?

Here's how to conduct a thorough cost-benefit analysis:

1. Establish a Framework for Your Analysis:

  • Define your business goals and objectives specific to your industry.
  • Choose a metric to measure and compare costs and benefits that align with local business practices.

2. Identify Your Costs and Benefits:

  • Make a list of projected costs, including direct business expenses like labour and materials and indirect costs such as utilities and overheads relevant to your operations.
  • Consider intangible costs like productivity losses during transitions or missed opportunities due to alternative strategies, keeping Singapore's competitive landscape in mind.
  • Compile a separate list of expected benefits, including direct revenue increases, indirect gains like enhanced brand reputation within the Singapore market, and intangible benefits such as improved employee morale.

3. Assign an Amount or Value to Each Cost and Benefit:

  • Considering Singapore's economic conditions and market dynamics, assign monetary values to all costs and benefits.
  • Use suitable methodologies or software to quantify indirect and intangible factors within the context.

4. Tally the Total Value of Benefits and Costs and Compare:

  • Sum up the total value of costs and benefits separately, ensuring accuracy in Singapore dollars.
  • Considering Singapore's business environment and regulatory framework, compare the total value of benefits against the total cost value.
  • If the benefits outweigh the costs, proceed with the project or decision, aligning with business goals and market trends. If costs exceed benefits, reconsider the proposal exploring alternative approaches or cost-saving measures relevant to your Singaporean operations.

Cost-Benefit Analysis Example

Let's consider a similar cost-benefit analysis for Rachel's Jewellery business, which is contemplating the expansion of its product line to include handcrafted accessories in addition to its existing jewellery offerings:

Goal: Rachel's Jewellery currently specialises in selling high-quality jewellery pieces but is considering expanding its product line to include handcrafted accessories, such as scarves and handbags, to attract a broader customer base.

Premise: By offering complementary accessories, Rachel believes her business can appeal to a wider audience and increase overall sales. However, she needs to assess this expansion's associated costs and benefits before deciding.


  • Initial setup costs for sourcing materials and developing new accessory designs: $20,000 (one-time expense).
  • Marketing expenses to promote the new product line: S$5,000.
  • Additional staffing costs to manage production and sales: S$10,000 per year.
  • Anticipated increase in sales revenue from accessory sales: S$30,000 in the first year.
  • Projected growth in accessory sales revenue by 20% annually.
  • Profit margin for accessories: 40%.

Year 1:

  • Total Costs: S$20,000 (setup) + S$5,000 (marketing) + S$10,000 (staffing) = S$35,000.
  • Total Revenue: S$30,000 (sales).
  • Gross Profit: S$30,000 (Revenue) - S$35,000 (Costs) = -S$5,000.

Year 2:

  • Total Costs: S$10,000 (staffing).
  • Total Revenue: S$30,000 (sales) * 1.2 (20% growth) = S$36,000.
  • Gross Profit: S$36,000 (Revenue) - S$10,000 (Costs) = S$26,000.

Year 3:

  • Total Costs: S$10,000 (staffing).
  • Total Revenue: S$36,000 (sales) * 1.2 = $43,200.
  • Gross Profit: S$43,200 (Revenue) - S$10,000 (Costs) = S$33,200.


  • While Rachel may experience a loss in the first year due to initial setup and marketing expenses, the subsequent years show positive returns.
  • The expansion into handcrafted accessories can lead to increased revenue and profitability over time, aligning with Rachel's goal of diversifying her product offerings and attracting new customers.

Decision: Based on the analysis, despite the expected costs of the initial investment and potential loss in the first year, the long-term benefits of expanding into handcrafted accessories appear promising for Rachel's Jewellery business.

This Cost-Benefit Analysis template serves as a fundamental cost-benefit analysis framework, yet its specifics may vary depending on your unique business and industry.

What Are The Methods Used In Cost-Benefit Analysis?

  • Net Present Value (NPV): NPV calculates the present value of future cash flows by discounting them back to their present value using a specified discount rate. A positive NPV indicates that the benefits of your project outweigh the costs, making it financially viable.
  • Benefit-Cost Ratio (BCR): BCR compares the present value of benefits to the present value of costs. A BCR more significant than 1 suggests that the benefits exceed the costs, making the project economically beneficial.
  • Internal Rate of Return (IRR): IRR is the discount rate at which the net present value of a project equals zero. It represents the project's rate of return and helps you understand its profitability. A higher IRR is preferable as it signifies a higher return on investment.
  • Payback Period: The payback period measures the time it takes for the project's cash inflows to recover its initial investment. Shorter payback periods are generally preferred as they indicate quicker returns on investment.
  • Cost-Effectiveness Analysis (CEA): CEA compares the costs of achieving a specific outcome or benefit across different interventions or projects. It helps you determine which option provides the most value for money in achieving your desired outcome.
  • Cost-Utility Analysis (CUA): CUA measures the costs of achieving a particular outcome in terms of its utility or benefit. You can use CUA to compare treatments or interventions based on their costs and quality-adjusted life years (QALYs).
  • Social Return on Investment (SROI): SROI measures the social value generated by a project or intervention relative to its costs. It assesses the project's social impact and helps you understand its broader societal benefits.

What Are The Advantages Of Cost-Benefit Analysis In Singapore? 

Here's why it matters:

Advantages of Cost-Benefit Analysis:

  1. A Data-Driven Approach: It allows you to evaluate decisions or potential projects without biases. 
  2. Revealing Hidden Factors: Cost-benefit analysis prompts you to identify every potential cost and benefit linked to a project. This reveals less apparent factors like indirect or intangible costs that may significantly impact your decision.
  3. Simplicity in Decision-Making: Business decisions can be complex, but cost-benefit analysis simplifies the process by breaking it down into costs versus benefits. This simplification makes your decision-making less daunting and more manageable.
  4. Informed Decision-Making: By weighing the expected benefits against the costs of a project or decision, cost-benefit analysis empowers you to make informed choices about whether to proceed with a particular course of action.
  5. Efficient Resource Allocation: With limited resources, it's essential to prioritise investments wisely. Cost-benefit analysis helps you allocate resources efficiently by focusing on projects that promise the highest return on investment.
  6. Effective Risk Management: Identifying potential costs, benefits, and uncertainties associated with a decision enables you to assess and manage risks effectively, ensuring smoother project implementation.
  7. Maximising Returns: Cost-benefit analysis enables you to identify opportunities to maximise returns by comparing alternatives and selecting the option with the most significant net benefit for your business.
  8. Enhanced Accountability: By providing a structured framework for evaluating the economic efficiency of projects or decisions, cost-benefit analysis helps you justify your choices to stakeholders, enhancing accountability within your business.

Now, let’s see how cost-benefit analysis helped Rachel. 

  • Data-Driven Decision-Making: Rachel collects data on costs (system purchase, training) and benefits (cost savings, efficiency).
  • Revealing Hidden Factors: Analysis uncovers hidden costs (overstocking, lost sales) and intangible benefits (customer satisfaction).
  • Simplicity in Decision-Making: Cost-benefit analysis simplifies decisions by comparing transparent costs and benefits.
  • Informed Decision-Making: Rachel evaluates ROI to decide whether to invest in the new system.
  • Efficient Resource Allocation: Analysis helps Rachel prioritise investments with the highest expected return.
  • Effective Risk Management: Identifying risks allows Rachel to manage them proactively.
  • Maximising Returns: Rachel can optimise financial performance by selecting the option with the most significant net benefit.

When Should You Do A Cost-Benefit Analysis? 

Cost-benefit analysis come in handy when your business juggles different priorities with limited resources. But before diving in, make sure everyone understands if the cost-benefit analysis will focus on short-, mid-, or long-term impacts. The farther into the future you analyse, the trickier it gets to predict costs and benefits accurately.

In general, consider doing a cost-benefit analysis for big decisions in these five areas:

  1. Investments in Equipment or Facilities: Decide whether buying new equipment or vehicles or renovating your workspace is worth it. Remember, the value of your investment comes from using it, not just owning it. For example, upgrading your manufacturing gear should help you make more products at a lower cost, even as the equipment's value declines over time.
  2. Improving How You Work: Look at ways to make repetitive tasks more accessible and less error-prone. Ask the question - How can you reduce wasted time and money?
  3. Changing How Your Business Works: Consider whether hiring more staff or outsourcing certain tasks makes sense. When setting up new sales channels or operational systems, consider the costs and benefits, like the potential for more turnover or needing extra help.
  4. Deciding on Prices or New Products: Determine if changing your prices or adding new products will make you more money. You may need to rethink your prices or eliminate products that aren't selling well.
  5. Big Business Moves: Before merging with another company or selling part of your business, thoroughly analyse. Sometimes, what seems like a good idea at first can cost you a lot in the long run. 

Cost-Benefit Analysis Limitations

Cost-profit analysis is ideal for small to mid-size projects with limited completion. These analyses assist in optimising profit-cost ratios effectively. However, you might encounter challenges with the CBA process when dealing with long-term projects. External factors like inflation rates can also impact the accuracy of your analyses. For many business owners like yourself, calculating the net current value of a project can be quite challenging. Fortunately, the CBA offers various alternative methods for evaluating larger projects, such as NPV and RR.

What Are The Risks And Uncertainties Of Cost-Benefit Analysis?

Recognising the risks direct benefits, and uncertainties associated with cost-benefit analysis is crucial to make informed decisions. These factors stem from human influences, data accuracy issues, and the use of shortcuts to conclude.

Understanding the Risks:

  • Human Bias: Stakeholders may skew results by exaggerating or downplaying costs, injecting personal or organisational biases into the analysis.
  • Data Reliability: Depending too heavily on data from past projects can lead to findings that aren't directly applicable to your current situation, potentially yielding inaccurate results.
  • Heuristic Errors: Using shortcuts to estimate the value of intangible factors can provide quick but imprecise information, leading to errors that distort cost assessments.

Mitigating Risks: 

  • Probability Analysis: Probability theory can help you identify and examine key patterns that may affect outcomes, offering you a more comprehensive understanding of risk factors.

Addressing Uncertainties:

  • Accuracy Matters: Inaccurate cost and benefit data can undermine the overall value derived from your analysis.
  • Thorough Research: Avoid relying solely on intuition; gather concrete data to ensure accuracy.
  • Cash Flow Dynamics: Recognise the unpredictable nature of revenue and cash flow, which can fluctuate and pose challenges in translating them into meaningful analysis.
  • Income Considerations: Customer purchasing behaviour may vary based on income levels, impacting decisions related to costs and benefits.
  • Non-Monetary Benefits: Some benefits cannot be quantified in monetary terms but are still essential considerations in your analysis.
  • Subjective Value: Recognise that the value of intangible factors may vary depending on individual interpretations.
  • Avoid Duplication: Exercise caution when measuring projects using multiple metrics to prevent inconsistencies in results caused by doubling benefits or costs.

By acknowledging and addressing these risks and uncertainties, you can conduct more robust and reliable cost-benefit analyses, enabling informed decision-making processes for your business.

Let’s look at this with an example. 

Let's imagine that Rachel has achieved remarkable success with her business venture. Now, she not only has numerous stakeholders to be accountable to but also a sizable staff managing her top-rated online business.

Now, Rachel is contemplating another website revamp to enhance user experience and boost sales. However, it must be swift since she can't afford to lose her customers to the competitors.  Before diving into the cost-benefit analysis, it's crucial to understand the associated risks and uncertainties.

  • Human Bias: Stakeholders involved in the analysis may unintentionally skew results by overemphasising or underestimating costs, injecting personal or organisational biases. This could lead to inaccurate conclusions about the benefits of the revamp.
  • Data Reliability: Depending too heavily on data from past projects may not accurately reflect the current situation. Using outdated or irrelevant data could result in findings not aligning with the platform's current needs or goals.
  • Heuristic Errors: Rushing through the analysis process and using shortcuts to estimate the value of intangible factors can lead to imprecise information. This can distort cost assessments and misrepresent the potential benefits of the revamp.

So, here’s what she should do. 

  1. Conduct Probability Analysis: Rachel can utilise probability theory to identify and analyse key patterns that may influence outcomes. This will offer her a more comprehensive understanding of the risks associated with the revamp.
  2. Ensure Accuracy: Rachel should conduct thorough research and gather concrete data to ensure the accuracy of cost and benefit assessments. Avoiding reliance solely on intuition and taking into account the platform's specific circumstances will be crucial.
  3. Consider Cash Flow Dynamics: Rachel needs to recognise the unpredictable nature of revenue and cash flow, which may fluctuate and pose challenges in conducting the analysis. Accounting for potential variations in income levels and customer purchasing behaviour will be essential.
  4. Evaluate Non-Monetary Benefits: Rachel should consider that some revamp benefits, such as improved brand perception and customer loyalty, may not be easily quantifiable in monetary terms. These factors should be essential considerations in the analysis.
  5. Recognise Subjective Value: Rachel must understand that the value of intangible factors may vary depending on individual interpretations. Considering stakeholders' diverse perspectives when assessing the potential benefits of the revamp will be beneficial.

Avoid Duplication: Rachel should exercise caution when using multiple metrics to measure the benefits of the revamp. Double-counting benefits or costs could lead to inconsistencies in the analysis results.

How Does Aspire Aid In Cost Management?

With Aspire, you can find solutions to streamline the cost management of your business. Here's how:

  1. Expense Tracking: Easily monitor all your business expenses, including invoices, receipts, and payments, from our centralised platform.
  2. Automated Expense Reporting: Save time by automating the creation of expense reports, making the process more efficient for your team.
  3. Efficient Bill Payments: Manage and schedule bulk payments effortlessly to ensure the timely settlement of your bills.
  4. Real-Time Spending Alerts: Stay updated on your spending habits with instant alerts, allowing you to manage costs proactively.
  5. Centralised Dashboard: Access our centralised dashboard to analyse spending patterns, identify areas for cost reduction, and enhance overall efficiency.

Therefore, do not delay any further; open a business account right away!

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About the author
Aaron Oh
is a seasoned content writer specialising in finance, insurance and tech industries. With a writing history at S&P Global, EdgeProp, Indeed, Prudential, and others, Aaron leverages finance knowledge and business insights to help businesses improve productivity and performance.
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