Required information [The following information applies to the questions displayed below.] On January 1, 2021, the Allegheny Corporation purchased equipment for $150,000. The estimated service life of the equipment is 10 years and the estimated residual value is $18,000. The equipment is expected to produce 240,000 units during its life. Required: Calculate depreciation for 2021 and 2022 using each of the following methods. 2. Double-declining-balance. Formula Beginning Book Value Amount for 2021 Amount for 2022 Double-Declining-Balance Method xDouble the Straight-line Rate x = Depreciation Expense % = % =