If you happened to catch last night’s episode of Gruen Planet on the ABC you would have seen Consumer Psychologist Adam Ferrier describing the Net Promoter Score. It is probably one of the most simplified explanations I’ve heard and it went a little like this:

Take the number of people promoting the brand and subtract the number of people detracting the brand and express that as a percentage. This equals your Net Promoter Score and can be correlated to brand growth.

Adam even had some great hand gestures to go with his explanation, so if you missed it you can watch it below.