Calculating Return on Investment: Fundamentals, Formulas, and Examples in the

Return on Investment (ROI) is a financial metric used to measure the percentage of return or profit generated from a specific investment compared to its original cost. This indicator expresses the efficiency of the investment and how much financial return it achieves relative to the amount paid in. The basic formula for calculating ROI is:

ROI (%) = [(Final Value of Investment - Initial Investment Cost) / Initial Investment Cost] × 100%

Practical Example: If someone invests SAR 10,000 in a particular stock, and after one year the total investment (including profits) becomes SAR 11,500, the ROI would be:

ROI = [(11,500 - 10,000) / 10,000] × 100% = 15%

This metric is widely used across all investment sectors, from stocks and bonds to real estate and commercial projects. Its ease of calculation makes it a preferred tool for investors and financial analysts, especially when comparing multiple investment alternatives.

Calculating ROI holds special importance in the Saudi financial market for several reasons. First, it serves as a quick indicator for evaluating the financial performance of any project or investment asset, whether it is a listed stock, real estate project, or industrial investment. Second, as the Kingdom moves to diversify income sources under Vision 2030, both individual and institutional investors increasingly use ROI metrics to assess the feasibility of new projects and compare different investment opportunities.

At the corporate level, boards of directors use ROI to estimate the efficiency of their investments in expansions or new asset acquisitions. Government entities and investment funds, such as the Public Investment Fund, rely on expected ROI when approving national projects to ensure sustainable returns and attract both local and foreign capital. Additionally, the ease of accessing return data helps investors make quick and effective decisions, especially amid economic fluctuations or changing interest rates.

When calculating ROI for stocks or other financial instruments, it is important to distinguish between two types of returns:

1. Capital Return: This is the return generated from the increase in the price of the financial asset (such as a stock) from the time of purchase to the time of sale. This type does not include any dividends or additional returns.

2. Total Return: This includes the capital return plus any cash or in-kind dividends received during the investment period. For stocks, total return is more accurate as it reflects all sources of return for the investor.

Example: If you buy a stock at SAR 50 and sell it after a year at SAR 55, and you received cash dividends of SAR 2 per share, then:
- Capital Return = ((55 - 50)/50) × 100% = 10%
- Total Return = ((55 - 50 + 2)/50) × 100% = 14%

This distinction is crucial when comparing the performance of companies or two investment assets, as some stocks with limited price growth may offer high dividend payouts.

The method of calculating ROI depends on the type of investment and the holding period. The basic formula is:

ROI (%) = [(Final Value of Investment - Initial Investment Cost) / Initial Investment Cost] × 100%

However, for stocks with dividends, dividends should be added to the capital return:

Total ROI = [ (Selling Price - Purchase Price + Dividends Received) / Purchase Price ] × 100%

Applied Example from the Saudi Market:
- An investor buys Al Rajhi Bank stock (symbol: 1120) at SAR 75, the bank pays annual dividends of SAR 3.25 per share, and after one year the stock rises to SAR 80.
- Capital Return = ((80-75)/75)×100% = 6.67%
- Dividend Return = (3.25/75)×100% = 4.33%
- Total Return = ((80-75+3.25)/75)×100% ≈ 10.9%

This method allows for a fair comparison between stocks that differ in their dividend payouts or price growth.

ROI is positive when the final value of the investment (including profits or dividends) exceeds the original investment cost. Conversely, ROI is negative when the investment value decreases or the investor incurs losses.

Negative Example: If a stock is purchased at SAR 50 and its price drops to SAR 40 with no dividends paid, then:
ROI = ((40−50)/50)×100% = −20%

Negative ROI typically occurs during market downturns, declining company profits, or poor project management. This highlights the importance of studying factors that may affect the future value of an investment and not relying solely on historical returns.

ROI is one profitability metric, but it differs from others such as Return on Equity (ROE) and Internal Rate of Return (IRR):

- ROI: Measures return as a percentage of total investment cost, regardless of funding source or investment period.
- ROE: Determines company profitability relative to shareholders’ equity (Net Profit/Shareholders’ Equity). Often used to compare companies within the same sector.
- IRR: Internal Rate of Return, which takes into account annual cash flows and the time value of money. Used in evaluating long-term projects with variable cash flows.

Each metric has specific uses, and it is advisable to use more than one indicator when analyzing medium- and long-term investments, especially when annual cash flows vary.

ROI serves as a primary starting point in the investment decision-making process, especially when comparing multiple alternatives. For example, if an investor has the option between a stock with an expected return of 12% and a government bond with a 5% return, they will often focus on ROI. However, risk must also be considered, as higher returns are usually associated with higher risks.

In the Saudi market, both individuals and financial institutions use ROI to evaluate investment opportunities in stocks, sukuk, real estate, and industrial projects. Government entities also rely on this metric when studying the feasibility of national projects or allocating resources to infrastructure or renewable energy projects.

ROI calculation in the Saudi market is influenced by several key factors:

1. Economic changes: such as inflation levels, interest rates, and GDP growth.
2. Financial market performance: the rise or fall of the main index (TASI) directly impacts the returns of listed stocks.
3. Dividend payouts: cash or in-kind dividends are an important factor in increasing ROI, especially in banking and energy companies.
4. Market liquidity: increased liquidity attracts investors and raises asset prices.
5. Sector competition: some sectors (energy, petrochemicals) achieve higher returns due to high profit margins.

All these factors require regular review of ROI and not relying solely on past calculations.

When analyzing ROI, it is recommended to review other related financial indicators such as:

- Price-to-Earnings Ratio (P/E): The lower it is, the higher the potential return per share relative to its price.
- Dividend Yield: The ratio of distributed profits to the share price.
- Revenue Growth Rate: Indicates the company's ability to increase future profits.
- Market Capitalization: Reflects the company's size and stability in the market.

Example of financial data from Al Rajhi Bank stock (approximate figures for 2024):
- Share price: SAR 75
- P/E ratio: 11
- Dividend yield: 4.3%
- Revenue growth rate: 8%
- Market capitalization: SAR 400 billion

These indicators help investors gain a deeper understanding of a stock or company’s performance before calculating actual ROI.

The main advantages of ROI are its ease of calculation and speed of use for comparing different projects or financial instruments. It can also be used across all sectors (stocks, real estate, industrial projects, etc.), making it a unified tool among investors.

However, the main disadvantages include ignoring the time factor, as the metric does not distinguish between achieving a 10% return in one year or over five years. It also does not reflect periodic or seasonal cash flows, nor does it account for investment-related risks. Therefore, it is always recommended to use complementary indicators such as IRR and payback period when analyzing major projects or long-term investments.

Let’s take practical examples from the Saudi financial market:

1. Saudi Aramco (2222):
- Share price at the start of 2025: SAR 32
- Annual dividend: SAR 1.5
- Selling price after one year: SAR 35

Capital return = ((35-32)/32)×100% = 9.4%
Dividend return = (1.5/32)×100% = 4.7%
Total return = ((35-32+1.5)/32)×100% ≈ 14.1%

2. Al Rajhi Bank (1120):
- Purchase price: SAR 75
- Dividend: SAR 3.25
- Selling price: SAR 80

Total return = ((80-75+3.25)/75)×100% ≈ 10.9%

These examples highlight the importance of combining capital return and dividends when evaluating any investment.

The Saudi financial market has undergone significant changes in recent years, directly affecting ROI levels. Key factors include:

- Rising interest rates: Led to increased returns on sukuk and bonds (4-5% annually), making them more attractive to some investors compared to stocks.
- Listing of new companies in technology and industrial sectors: Contributed to increased liquidity and higher capital returns.
- Increased weighting of the Saudi market in global emerging market indices: Attracted foreign investments and enhanced return competitiveness.
- Growth of the non-oil economy: Led to diversification of return sources for investors.

These developments require regular monitoring and continuous analysis of the factors influencing ROI calculation.

There are several strategies to improve ROI in the Saudi market, including:

1. Selecting high-growth sectors: such as energy, petrochemicals, and major banks.
2. Investing in stocks that offer regular and high dividends.
3. Reducing administrative and financing costs associated with projects.
4. Reinvesting profits to increase compound returns over time.
5. Carefully assessing risks and not relying solely on return figures.

It is also advisable to use stock analysis platforms like SIGMIX to compare returns scientifically and update calculations based on companies’ actual financial performance.

Nevertheless, it is important to emphasize consulting a licensed financial advisor before making any investment decisions, especially given market volatility and changing economic conditions.