ROI meaning: formula and examples for small businesses

Published Thursday 2 April 2026

Table of contents

• What is return on investment (ROI)?
• How to calculate ROI
• ROI calculation examples
• What is a good ROI?
• What are the benefits of measuring ROI?
• What are the limitations of ROI?
• ROI metrics for specific business activities
• Additional considerations for small businesses
• Common ways to improve your ROI
• Track your ROI with Xero
• FAQs on ROI

Key takeaways

• Calculate ROI using the simple formula: (Net profit ÷ Cost of investment) × 100% to measure how much profit your investment generates compared to its cost.
• Aim for an ROI of 10% or higher as this is generally considered strong performance, though what counts as "good" varies based on your industry, risk tolerance, and business goals.
• Apply ROI analysis to compare different business decisions like marketing campaigns, equipment purchases, hiring decisions, and vendor choices to make smarter investments.
• Consider ROI alongside time frame, risk level, and intangible benefits like brand awareness or employee morale to get a complete picture before making investment decisions.

Key takeaways

• Return on investment (ROI) measures profit relative to cost, expressed as a percentage.
• Calculate ROI using this formula: (Net profit ÷ Cost of investment) × 100%.
• A good ROI depends on your industry, but 10% or higher is generally considered strong.
• ROI helps you compare marketing campaigns, equipment purchases, hiring decisions, and more.
• Consider ROI alongside time frame, risk, and intangible benefits for a complete picture.

What is return on investment (ROI)?

Return on investment (ROI) is a financial metric that measures how much profit an investment generates compared to its cost. It's expressed as a percentage, making it easy to compare different investments.

ROI helps you make smarter business decisions, such as:

• evaluating whether to open a new location or buy new equipment
• measuring the success of a marketing campaign or project
• comparing costs when switching vendors
• assessing whether hiring new staff will pay off

ROI measures profitability relative to cost and is expressed as a percentage. A positive ROI means your investment earned more than it cost. A negative ROI means the investment cost more than it returned.

For example, a 2024 International Data Corporation (IDC) study found that businesses using an enterprise resource planning (ERP) system achieved a 327% three-year ROI, highlighting the value of robust financial tracking.

How to calculate ROI

The ROI formula: (Net profit ÷ Cost of investment) × 100%

To calculate ROI, you need two numbers:

• Net profit: the total return from the investment minus the cost
• Cost of investment: the total amount you spent

Divide your net profit by your investment cost, then multiply by 100 to get your ROI percentage.

In the formula, net profit is the total return from the investment minus the cost of the investment (the total amount spent on the investment).

Accounting software can help you track the numbers you need for accurate ROI calculations, and you can expect to pay about $100 per month for a basic plan depending on your needs.

ROI calculation examples

Seeing the formula in action makes it easier to understand. Here are three common small business scenarios.

Marketing campaign ROI

A kombucha company spent $4,000 on ads and generated $6,500 in new sales.

• Net profit: $6,500 − $4,000 = $2,500
• ROI calculation: ($2,500 ÷ $4,000) × 100 = 62.5%

The campaign earned $0.63 for every dollar spent.

Equipment purchase ROI

A bakery invested $10,000 in a new oven that increased monthly revenue by $1,500. After one year:

• Net profit: ($1,500 × 12) − $10,000 = $8,000
• ROI calculation: ($8,000 ÷ $10,000) × 100 = 80%

Hiring ROI

A consulting firm hired an employee at $50,000 per year who generated $120,000 in billable work.

• Net profit: $120,000 − $50,000 = $70,000
• ROI calculation: ($70,000 ÷ $50,000) × 100 = 140%

What is a good ROI?

A good ROI depends on your industry and goals, but generally:

• 5–7% ROI: considered average for many investments. For example, the S&P 500's historical real return around 7% per year after accounting for inflation has become a standard benchmark.
• 10% or higher: typically considered strong, with some sources describing 10%+ as a common floor for a worthwhile project.
• 20% or more: excellent, though often involves higher risk

Keep in mind that what counts as "good" varies based on:

• Risk tolerance: higher-risk investments should deliver higher returns
• Business goals: strategic investments may have lower ROI but support growth
• Time frame: some investments take longer to generate returns

What are the benefits of measuring ROI?

Measuring ROI helps you make confident business decisions. Here's why it's valuable for small businesses:

• Simple to calculate: the formula is straightforward and requires only two numbers
• Easy to interpret: positive ROI means profit, negative ROI means loss
• Versatile: compare marketing campaigns, equipment purchases, hiring decisions, or vendor options
• Forward-looking: evaluate potential investments before committing funds
• Investor-friendly: demonstrate business viability to potential investors or lenders

What are the limitations of ROI?

ROI is useful, and you can make it even more effective by considering additional factors. Keep these in mind when using ROI to make decisions:

• Time considerations: ROI works best when you also track how long an investment takes to pay off. A 25% ROI in one year is very different from 25% over five years. To account for this, some analysts calculate an annualised ROI. For instance, a stock that returns 21.6% in under a year could have an annualised return of 35.5%.
• Additional costs to consider: remember to factor in depreciation, financing costs, and opportunity costs separately.
• Intangible benefits: consider brand awareness, customer loyalty, and employee morale alongside ROI, as these affect long-term success.
• Context matters: a high ROI on a small investment may matter less than a moderate ROI on a larger one.

Use ROI alongside other metrics like cash flow, payback period, and alignment with your goals to get the full picture.

ROI metrics for specific business activities

ROI applies to many areas of your business. Here's how to use it for specific activities.

Marketing ROI

Measure the effectiveness of campaigns, channels, and tactics. Key metrics include:

• Return on ad spend (ROAS): revenue generated per dollar spent on advertising
• Customer acquisition cost (CAC): total cost to acquire one new customer
• Conversion rate: percentage of leads that become paying customers

Sales ROI

Assess sales strategies, promotions, and customer segments. Key metrics include:

• Sales growth rate: percentage increase in revenue over time
• Average order value (AOV): average amount spent per transaction
• Customer lifetime value (CLTV): total revenue expected from a customer relationship

Project ROI

Evaluate the financial viability of new initiatives. Key metrics include:

• Net present value (NPV): projected value of future cash flows in today's terms
• Internal rate of return (IRR): expected annual growth rate of an investment

Employee ROI

Understand the value of hiring, training, and development. Key metrics include:

• Revenue per employee: total revenue divided by number of staff
• Employee turnover rate: percentage of staff leaving within a period
• Training ROI: productivity gains compared to training costs

Additional considerations for small businesses

Beyond the basic ROI calculation, consider these factors when evaluating investments.

Time frame

The same ROI percentage can mean very different things depending on how long the investment takes. Consider these examples:

• 25% ROI in one year: strong annual return
• 25% ROI over two years: roughly 12% per year

Calculate ROI over consistent time periods (monthly, quarterly, or annually) to compare investments fairly.

Intangible benefits

ROI measures financial returns only. Some investments deliver value that's harder to quantify:

• Brand awareness: social media presence that builds recognition
• Customer loyalty: service improvements that increase repeat business
• Employee morale: workplace upgrades that reduce turnover

Factor these benefits into your decision even if they don't appear in ROI calculations.

Risk vs reward

Higher potential ROI often comes with higher risk. In fact, pursuing elevated returns often requires accepting higher volatility and the possibility of potential drawdowns of 20–30% or more during market corrections. Before investing, assess:

• Your risk tolerance: how much are you comfortable putting at risk?
• Risk scenarios: what's your plan if the investment underperforms?
• Diversification: are you spreading risk across multiple investments?

Common ways to improve your ROI

Improving your ROI starts with better tracking and smarter decisions. Here's how to get better returns:

• Set clear goals: define what success looks like before you invest
• Track results regularly: monitor performance monthly or quarterly to spot trends early
• Use accounting software: tools like Xero provide the data you need to measure ROI accurately
• Make data-driven decisions: use ROI calculations to compare options before committing funds
• Test and iterate: experiment with small investments, measure results, and scale what works

Track your ROI with Xero

Understanding ROI helps you evaluate how decisions affect your profitability and make smarter investments in the future. Combine ROI analysis with cash flow management and profitability tracking for a complete picture of your business health.

Xero's accounting software makes it easy to track the numbers you need for accurate ROI calculations. From expense tracking to financial reporting, you'll have the data to measure what's working and what isn't.

Try Xero free for one month and start making more confident business decisions.

FAQs on ROI

Here are answers to common questions about return on investment.

What is ROI in simple terms?

ROI (return on investment) measures how much profit you make compared to how much you spent. If you made $10,000 from a $1,000 investment, your ROI would be 900%.

How is ROI calculated?

Subtract the investment cost from the total return to get net profit. Divide net profit by the investment cost, then multiply by 100 to get the percentage.

What does 20% ROI mean?

A 20% ROI means you earned $0.20 for every $1 invested. For example, a $1,000 investment with 20% ROI generated $200 in profit.

What's a good ROI for a small business?

It depends on your industry and risk tolerance. Generally, 5–7% is average, 10% or higher is strong, and 20% or more is excellent. Benchmark against your industry averages using resources from government statistical agencies or your financial advisor.

How long does it take to see a return on investment?

It varies by investment type. Marketing campaigns may show returns within weeks, while equipment or training investments often take months or years to pay off.