please explain step to step how to solve for this problem. i would like steps to all the calchlation as well as why would we do this and that that way i can learn from it. thanj you

Surland Company purchased a machine on July 1, 2018, for $1480000. The machine was estimated to have a useful life of 10 years with an estimated salvage value of $85000. During 2021, it became apparent that the machine would become neconomical after December 31, 2025, and that the machine would have no scrap value. Accumulated depreciation on this machine as of December 31, 2020, was $360000. What should be the charge for depreciation in 2021 under generally accepted accounting principles? $22.4000 $241000 $207000 $309000