Regulieu U LIUI [The following information applies to the questions displayed below.] On January 1, 2021, the Allegheny Corporation purchased equipment for $172,000. The estimated service life of the equipment is 10 years and the estimated residual value is $18,000. The equipment is expected to produce 350,000 units during its life. Required: Calculate depreciation for 2021 and 2022 using each of the following methods. raight line. Straight-Line Depreciation 1 Choose Denominator: Choose Numerator: Annual Depreciatic Expense = Depreciation Expense Depreciation Expense 21 22