Canliss Mining uses the retirement method to determine depreciation on its office equipment. During 2019, its first year of operations, office equipment we purchased at a cost of $15,000. Useful life of the equipment averages four years and no salvage value is anticipated In 2021, equipment costing $4,000 w sold for $620 and replaced with new equipment costing $7100 Canliss would record 2021 depreciation of Multiple Choice O $3,340 $3,380 None of these answer choices are correct $3.420 4