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How to Calculate ROI (Return on Investment)

Return on investment, or ROI, is the overall profit made on an investment expressed as a percentage of the amount invested -- one of the most important gauges of business success. Learn how to figure out your ROI.


  • Step 1: Determine net profit Determine the company's net profit, also known as net earnings.
  • TIP: Make sure not to confuse net profit with gross revenue.
  • Step 2: Calculate total investment Calculate the total investment, which can be found by adding total debt to total equity.
  • Step 3: Multiply by 100 Divide the net profit by the total investment and multiply by 100 to find the basic return on investment. If the net profit is $100,000 and the total invested is $300,000, then the return on investment would be 33 percent.
  • Step 4: Compute stock ROI Compute the return on stock investments with a variation of the basic formula.
  • Step 5: Find the value Imagine you invest $5,000 in a company. One year later, the stock's value has risen to $5,200 and you earn $100 in dividends. Use the new formula to calculate your ROI at 6 percent.
  • FACT: In 1919, the DuPont company developed their own ROI formula, known as the DuPont Formula.

You Will Need

  • Math skills
  • Pen and paper or calculator

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