The Net Promoter Score (NPS) is a measure of customer loyalty and satisfaction. It is calculated by asking customers to rate their likelihood to recommend a company's product or service to others on a scale of 0 to 10. Customers who respond with a 9 or 10 are considered "promoters," while those who respond with a 7 or 8 are considered "passive," and those who respond with a 0 to 6 are considered "detractors." The NPS is calculated by subtracting the percentage of detractors from the percentage of promoters. A high NPS indicates that a company has a large number of loyal customers who are likely to promote the company's products or services to others.