Depreciation, Impairments and Depletion.

ORIOLE COMPANY PURCHASE A PIECE OF EQUIPMENT ON JANUARY 1, 2016 AT COST OF $80,000. THE EQUIPMENT WAS DEPRECIATED USING THE STRAIGHT-LINE METHOD OVER AN 5. ESTIMATED FIVE YEAR LIFE WITH AN ESTIMATED RESIDUAL VALUE OF $8,000. ON JANUARY 1, 2018, THE FOLLOWING INDEPENDENT SITUATIONS OCCURRED: A. THE ESTIMATED USEFUL WAS CHANGED TO A TOTAL OF 10 YEARS AND THE ESTIMATED RESIDUAL VALUE WAS CHANGED TO $2,000. 8. ORIOLE COMPANY CHANGED FROM THE STRAIGHT-LINE METHOD TO THE SUM-OF-THE YEARS'-DIGITS METHOD