ROI stands for "Return on Investment," It is an important economic metric used to measure the effectiveness of an investment. ROI shows how much profit or loss an investment has generated relative to its cost. It is a key tool for businesses and investors who want to assess whether an investment is profitable.
How do you calculate ROI?
ROI is calculated by taking the net earnings from the investment, subtracting the investment costs, and then dividing the result by the investment costs. The formula is:

For example, if you invest 10,000 DKK in a marketing campaign and generate 15,000 DKK in profit, ROI will be:

This means the investment has generated a 50% return.
Why is ROI important?
ROI is a central metric for several reasons:
- Measurability: It makes it possible to quantify the success of an investment in concrete numbers.
- Comparison: It makes it easy to compare different investments and choose the most profitable.
- Decision-making: It helps companies and investors make informed decisions about whether to undertake, continue, or terminate an investment.
How can ROI be improved?
To improve ROI, companies and investors may consider the following strategies:
- Cost reduction: Minimize investment costs without compromising quality.
- Increase revenues: Implement effective strategies to increase the investment's revenues, such as optimizing marketing campaigns or improving product sales.
- Efficient resource management: Use resources efficiently to maximize output and minimize waste.
- Continuous monitoring and optimization: Regularly track investment results and make necessary adjustments to improve performance.
Applications
ROI is used in a wide range of contexts, including:
- Marketing: Assessing the effectiveness of marketing campaigns and strategies.
- Financial investments: Measuring returns on stocks, bonds, and other financial instruments.
- Business projects: Evaluating the profitability of new business initiatives, product launches, or infrastructure investments.
By understanding and applying ROI, companies and investors can make better decisions that lead to higher profitability and financial success.