Downey Company bought a delivery truck for $62,000 on January 1, 2005. They installed a rear hydraulic lift for $8,000 and paid sales tax of $3,000. In addition, Downey paid $2,400 for a one-year insurance policy. They estimate the useful life of the truck to be 10 years and its residual value to be $8,000.
If Downey uses the double declining-balance method, how much is the truck's depreciation expense for 2006?
a) $11,680
b) $12,144
c) $10,400
d) $11,760