I believe the answer is: Book value
The number in the book value is made after considering two things; the price when we acquire the asset and the amount of depreciation or appreciation.
Selling an asset on book value is the bare minimum needed for the sellers to not experiencing a financial loss
I believe the average could be around 4.0 though 4.9 or around 5.0 through 6.0 :)
Social psychology
This article is about the mind in a social setting. For other uses, see Social psychology (disambiguation). In psychology, social psychology is the scientific i think