Purdue company purchased equipment on April 1 for $35,100 the equipment was expected to have a useful life or three years of 4860 operating hours any residual value of $1080 equipment was used for 900 hours during year 1700 in year two, 1,500 in year three and 760 hours in year four

Determine the amount of depreciation expenses for the years into December 31 year one year two year three and year four by 1- a straight line method 2-units of activity method and 3-double declining balance method to 4 decimal places then round to each uear to nearest whole dollar