Detractors give a score of 0-6 and are not at all likely to recommend your company to a friend. This gives a strong indication that they're unhappy and disengaged.
Passives give a score of 7 or 8 and are neutral. They’re not likely to recommend your company to a friend, however, they’re happy working for you.
Promoters give a score of 9 or 10 and are extremely likely to recommend your company to a friend. Employees giving this score are obviously happy to work for you and are engaged with the business.