What is the correct formula for return on investment?

Asked by: Kelly Bosco  |  Last update: November 18, 2025
Score: 4.4/5 (56 votes)

ROI = (net benefits/total cost) It is the incremental financial gain (or loss). If a parcel mapping project costs $50,000 to implement, and you demonstrate $25,000 in net benefits, then the ROI calculation would appear as follows. The ROI in this example is 50% which represents a positive return on the investment.

What is the formula for return on investment?

Return on investment (ROI) is an approximate measure of an investment's profitability. ROI is calculated by subtracting the initial cost of the investment from its final value, then dividing this new number by the cost of the investment, and finally, multiplying it by 100. ROI has a wide range of uses.

What is the formula for real return on investment?

What is the formula for the real rate of return? The real rate of return formula is: (1+NominalRate) ÷ (1+InflationRate)-1. This calculation determines the cash value of your investment after accounting for the impact of inflation and taxes.

What is the ROI ratio?

Return on investment (ROI) is a financial ratio used to calculate the benefit an investor will receive in relation to their investment cost. It is most commonly measured as net income divided by the original capital cost of the investment. The higher the ratio, the greater the benefit earned.

What is the correct mathematical expression for return on investment?

Return on investment (ROI) is calculated by dividing the profit earned on an investment by the cost of that investment. For instance, an investment with a profit of $100 and a cost of $100 would have an ROI of 1, or 100% when expressed as a percentage.

The Return On Investment (ROI) in One Minute: Definition, Explanation, Examples, Formula/Calculation

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What is the formula for ROI in math?

The basic formula for ROI is: ROI = Net Profit / Total Investment * 100. Keep in mind that if you have a net loss on your investment, the ROI will be negative. Shareholders can evaluate the ROI of their stock holding by using this formula: ROI = (Net Income + (Current Value - Original Value)) / Original Value * 100.

What is the mathematical formula for investment?

The amount of interest earned on an investment or due on a loan is calculated using I = Prt. This formula can also be used to determine: the amount of principal (P) that needs to be invested in order to earn a certain amount of interest over a certain period of time.

What is the ideal ROI percentage?

General ROI: A positive ROI is generally considered good, with a normal ROI of 5-7% often seen as a reasonable expectation. However, a strong general ROI is something greater than 10%. Return on Stocks: On average, a ROI of 7% after inflation is often considered good, based on the historical returns of the market.

What is the formula for annualized return on investment?

To calculate the total return rate (which is needed to calculate the annualized return), the investor will perform the following formula: (ending value - beginning value) / beginning value, or (5000 - 2000) / 2000 = 1.5. This gives the investor a total return rate of 1.5.

What is the denominator in the calculation for return on investment?

If a division of an organization is evaluated using return on investment (ROI) without regard to or focuses on how the assets are financed, the denominator that would be used in the calculation of the return on investment is the total number of assets used by the organization or the assets employed.

How do you calculate actual return on investment?

Annualised return can be calculated with the following formula: End Value – Beginning Value/Beginning Value * 100 * (1/holding period of the investment) For example, you had bought a house for 30 lakh in January 2010 and sold it for Rs 50 lakh in January 2020.

What is ROI in simple terms?

ROI is a calculation of the monetary value of an investment versus its cost. The ROI formula is: (profit minus cost) / cost. If you made $10,000 from a $1,000 effort, your return on investment (ROI) would be 0.9, or 90%. This can be also usually obtained through an investment calculator.

What is a good return on investment?

What is a good ROI? While the term good is subjective, many professionals consider a good ROI to be 10.5% or greater for investments in stocks. This number is the standard because it's the average return of the S&P 500 , an index that serves as a benchmark of the overall performance of the U.S. stock market.

What is the formula for the required rate of return on an investment?

RRR = rf + ß(rm – rf)

RRR – required rate of return. rf – risk-free rate. ß – beta coefficient of an investment.

What is the difference between ROI and ROE?

While Return on Investment (ROI) and Return on Equity (ROE) are both metrics for assessing managerial performance, as reflected in the company's returns. ROI measures the percentage return on a particular investment, whereas ROE specifically evaluates the profitability relative to shareholders' equity.

What is the formula for return on investment ROI in Excel?

Calculating ROI is simple, both on paper and in Excel. In Excel, you enter how much the investment made or lost and its initial cost in separate cells, then, in another cell, ask Excel to divide the two figures (=cellname/cellname) and give you a percentage. Harvard Business School.

How do you calculate the total return on investment?

Assume a $10,000 investment grows to $12,000 over a five year period. To calculate the total return over the period, divide the ending value by the beginning value and then subtract one. [ (12,000/10,000) – 1 = 0.20 = 20% ] It might seem like a 20% return over five years would equate to a 4% annual return.

What is an example of return on investment?

ROI = (net benefits/total cost)

If a parcel mapping project costs $50,000 to implement, and you demonstrate $25,000 in net benefits, then the ROI calculation would appear as follows. The ROI in this example is 50% which represents a positive return on the investment.

How do you calculate monthly return on investment?

You can calculate the return on your investment by subtracting the initial amount of money that you put in from the final value of your financial investment. Then you would divide this total by the cost of the investment and multiply that by 100.

How do you calculate ROI manually?

How can you calculate ROI manually? To find ROI manually, take the profits from a project and divide by its costs. That gives you the ROI ratio. You can multiply by 100 to convert ROI to a percentage.

What is a realistic annual return on investment?

Most investors would view an average annual rate of return of 10% or more as a good ROI for long-term investments in the stock market. However, keep in mind that this is an average.

What is a good return on a 401k?

Many retirement planners suggest the typical 401(k) portfolio generates an average annual return of 5% to 8% based on market conditions. But your 401(k) return depends on different factors like your contributions, investment selection and fees.

What is the best formula for investing?

Simply put, the Rule of 72 offers a quick and straightforward method for investors to estimate the number of years required to double their money at a consistent rate of return. The formula is simple. You divide 72 by your expected annual rate of return.

What is the best money management formula?

The 50-30-20 rule recommends putting 50% of your money toward needs, 30% toward wants, and 20% toward savings. The savings category also includes money you will need to realize your future goals. Let's take a closer look at each category.

What math do investors use?

From basic arithmetic to percentages, compounding, statistics, probability, calculus, and linear algebra, these tools can help you analyze investments, assess risk and reward, and build a successful investment strategy.