chager Company purchased a computer system on January 1, 2019, at a cash cost of $25,000. The estimated useful life is 10 years, and the estimated residual value is $3,000. The company will use the double declining-balance depreciation method. What is the accumulated depreciation balance as of December 31, 2020? $9,000. $4,000. $7,920. $8,520.

In june, one of the processinthe assembly department started the month with 25,000 units in its beginning work in process inventory. an additional 310,000 units were transferred in from the prior department during the month to begin processing in the assembly department. there were 30,000 units completed and transferred to the next processing department during the month. how many units the assembly department started the month with 25,000 units in its beginning work in process inventory. an additional 310,000 units were transferred in from the prior department during the month to begin processing in the assembly department. there were 30,000 units completed and transferred to the next processing department during the month. how many units were in its ending work in process inventory