Exercise 11-4 (Algo) Other depreciation methods [LO11-2] [The following information applies to the questions displayed below.] On January 1, 2021, the Allegheny Corporation purchased equipment for $331,000. The estimated service life of the equipment is 10 years and the estimated residual value is $23,000. The equipment is expected to produce 292,000 units during its life. Required: Calculate depreciation for 2021 and 2022 using each of the following methods. Exercise 11-4 (Algo) Part 3 3. Assume instead the equipment was purchased on October 1, 2021. Calculate depreciation for 2021 and 2022 using each of the two methods. Partial-year depreciation is calculated based on the number of months the asset is in service.