Deprication method and each year to the nearest whole dollar a. Straight-line method Year Amount Year 1 9,625 Year 2 12,833 Year 3 12,833 Year 4 3,208 b. Units-of-activity method Year Amount Year 1 Year 2 Year 3 Year 4 C. Double-declining-balance method Year Amount Year 1 Year 2 Year 3 Year 4