a business purchased a motor vehivehicle for $44000 gst inclusive i.e 40000 plus $4000 gst on 1 january 2016 the motor vehicle has an estimated residual value of 4400 gst inclusive i.e 4000 plus gst 400 gst and a useful life of 200000km using the units of production method calculate the depreciation expense at 30 june 2016 if the motor vehicle travelled 20000km for the six months ending 30 june 2016