Net Promoter Score (NPS) measures what proportion of customers are Promoters – those who are the most likely to recommend the services of the company to others, and what proportion are Detractors who would not recommend the company or even express their dissatisfaction with the services provided by the company.

The higher the NPS, the greater the potential of a company for growth and development, because besides traditional advertising and marketing, it is being promoted by word of mouth, which undoubtedly has a considerable effect on sales and number of customers of a company.