In recent years, Oriole Corporation has purchased three machines. Because of frequent employee turnover in the accounting department, a different accountant was in charge of selecting the depreciation method for each machine, and various methods have been used. Information concerning the machines is summarized in the table below. For the diminishing-balance method, Oriole Corporation uses double the straight-line rate. For the units-ofproduction method, total machine hours are expected to be 22,590. Actual hours of use in the first 3 years were: 2019,420;2020,4,370; and 2021,4,950. Machine 3: Units-of-production depreciation Machine 3: Units-of-production depreciation