Pronghorn Company purchased machinery on January 1, 2017, for $84,800. The machinery is estimated to have a salvage value of $8,480 after a useful life of 8 years. Compute 2017 depreciation expense using the double-declining-balance method.

Depreciation expense $

Compute 2017 depreciation expense using the double-declining-balance method, assuming the machinery was purchased on October 1, 2017. (Round answer to 0 decimal places, e.g. 5,125.)

Depreciation expense $