Net Promoter Score (NPS) is a metric used to gauge customer loyalty and satisfaction. It is based on a single question: "How likely are you to recommend our product or service to a friend or colleague?" Respondents rate their likelihood on a scale from 0 to 10, which helps businesses understand their customers' feelings toward their brand. The scores are categorized into three groups: Promoters (9-10), who are enthusiastic supporters; Passives (7-8), who are satisfied but unenthusiastic; and Detractors (0-6), who are unhappy customers. The NPS is calculated by subtracting the percentage of Detractors from the percentage of Promoters, providing a clear snapshot of overall customer sentiment.