On January 1, 2017, Betty DeRose, Inc. purchased a piece of machinery for $170,000. The machine had an estimated useful life of 10 years and a residual value of $5,000. Assume Betty DeRose depreciates its assets using the double declining balance method of depreciation. Calculate the amount of accumulated depreciation related to the machine that would appear in Betty's December 31, 2020 balance sheet. Do not use decimals in your answer.