Meca Concrete Purchased a Mixer on January 1,2014,at a Cost

Essay

Meca Concrete purchased a mixer on January 1,2014,at a cost of $45,000.Straight-line depreciation for 2014 and 2015 was based on an estimated eight-year life and $3,000 estimated residual value.In 2016,Meca revised its estimate and now believes the mixer will have a total service life of only six years,and that the residual value will be only $2,000.
Required:
Compute depreciation for 2016 and 2017.