3 O ces Required information [The following information applies to the questions displayed below] On January 1, 2021, the Allegheny Corporation purchased equipment for $151,000. The estimated service life of the equipment is 10 years and the estimated residual value is $8,000. The equipment is expected to produce 232,000 units during its life. Required: Calculate depreciation for 2021 and 2022 using each of the following methods. 1. Sum-of-the-years-digits (Do not round intermediate calculations. Round final answers to the nearest whole dollar amount.) Year Depreciation expense 2021 4 2022 Check my work