On January 1, 2009, the Emming Corporation purchased some machinery. The machinery has an estimated life of 10 years and an estimated residual value of $5,000. The depreciation on this machinery was $20,000 in 2011.

Required

Compute the acquisition cost of the equipment under the following depreciation methods:

1. Straight-line

2. Sum-of-the-years’-digits

3. Double-declining-balance