A loyalty metric based on how likely customers are to recommend you, scored from -100 to +100.
Net Promoter Score (NPS) gauges customer loyalty by asking how likely someone is to recommend you (0–10). Respondents are grouped into promoters, passives, and detractors; the score is the percentage of promoters minus detractors. NPS reflects long-term relationship strength, complementing the short-term signal of CSAT.