ROI stands for return on investment and is an important key figure in the field of online marketing and business activity in general. ROI refers to the ratio between the profit or income generated by an investment and the costs or expenses incurred for this investment.

The formula for calculating the ROI is: (profit - investment costs) / investment costs x 100%.

A positive ROI means that the investment has generated more profit than the costs incurred. A negative ROI, on the other hand, means that the investment has caused losses.

In neuroweb design, ROI can be used to measure and optimise the success of a website or online marketing campaign. By analysing data such as traffic, conversion rate and sales, ROI can be calculated and used to make decisions to improve the website or marketing strategy. A higher ROI usually means that the website is more effective in terms of conversion rate and sales and therefore more successful in terms of business activity.