[The following information applies to the questions displayed below] On October 1, 2021, the Allegheny Corporation purchased equipment for $224,000. The estimated service life of the equipment is 10 years and the estimated residual value is $4,000. The equipment is expected to produce 400,000 units during its life, Required: Calculate depreciation for 2021 and 2022 using each of the following methods. Partial-year depreciation is calculated based on the number of months the asset is in service. 3. Units of production (units produced in 2021, 20,000; units produced in 2022, 35,000). (Round "Depreciation per unit rate" answers to 2 decimal places.) Select formula for Units of Production Depreciation: Cost / Total units of production (Cost - Residual) / Total units of production (Cost - Residual) / Useful life in periods Cost / Total units of production SL rate Beginning-period book value