Easter Corp

Easter Corp. owns a machine that it purchased on Jan 1, 2010 for $600,000. The machine had an estimated useful life of 10 years and an estimated residual value of $100,000. The company uses the declining balance method with a rate of 20%. The machine was sold on December 31, 2012 for $140,000. What was the accumulated depreciation at December 31, 2011?

A) $100,000
B) $120,000
C) $180,000
D) $216,000