NPS stands for Net Promotor Score. Customers are asked in surveys the extent to which they would recommend a specific company, product or service to others. They can give a score between 0 and 10. The group of responders who give a mark of 0 to 6 are called detractors. The group marking a 9 or 10 are qualified as promoters, and the remainder (7 and 8) are considered passive-neutral. The NPS is determined by subtracting the percentage of detractors from the percentage of promotors. For example, if research shows that 30% of the responders is a promotor and 20% is a detractor, the NPS is +10.