Calculate depreciation under alternative methods. (LO 2)}

Propel Company bought a machine for \(\$ 65,000\) cash at the beginning of 2006. The estimated useful life is 5 years and the estimated salvage value is \(\$ 5,000\). The estimated productivity is 150,000 units. Units actually produced were 49,500 in 2006 and 36,000 in 2007. Calculate the depreciation expense for 2006 and 2007 under each of the three methods given. (Round your answers to the nearest dollar.)

a. Straight-line method

b. Activity method

c. Double-declining balance method