A concrete and rock crusher for demolition work has been purchased for $56,000, and 2 has an estimated SV of $8.000 at the end of its five -year life. Engineers have estinated that the following units of production (in m2 of crushed material) will be contracted over the nexd five years. Using the units of production dopreciation method what is the depreciation allowance in year two, and what is the BV at the end of year four? The depreciation allowance in year two is : (Round to the nearest dollar)