Based on the response to a single question posted to current customers $$On a scale of $0$ to $10,$ how likely is it that you would recommend $\_\_\_\_\_$ to a friend or colleague,$60\%$ of respondents are promoters, $10\%$ are detractors, and $30\%$ are passives. What is the Net Promoter Score in this case?

Based on the response to a single question posted to current customers $$On a scale of $0$ to $10,$ how likely is it that you would recommend $\_\_\_\_\_$ to a friend or colleague,$60\%$ of respondents are promoters, $10\%$ are detractors, and $30\%$ are passives. What is the Net Promoter Score in this case?

$40$

$70$

$30$

$40$

$50$