Kelley's Keying purchased a computer on January 1, 2010 for $3,700.00. The estimated salvage (disposal) value is $200.00 and the estimated useful life is 5 years. What is the annual depreciation expense? Kelley's Keying purchased a computer on January 1, 2010 for $3,700.00. The estimated salvage (disposal) value is $200.00 and the estimated useful life is 5 years. What is the annual depreciation expense? $700.00 $740.00 $340.00