Asset valuation, depreciable life of eight years, has been used for five years, the replacement cost of 80000. weighted average depreciable life how to calculate

2, weighted average is the concept of mathematics and statistics, have to have a number of different weights of the subject to mean, the original question only a reference, does not apply to the weighted average.

3, the depreciable life of the original question has been said (eight years)

4, the rate of newness 1-(5/8)