I cannot figure out what the year 1 and 4 amounts for the Double Declining Balance method. I have tried every formula I could possibly try.

Depreciation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $38,880, The equipment was experted to have a useful life of three years, or 7,560 operating hours, and a residual value of $1,080. The equipment was used for 1,400 hours during Year 1,2,600 hours in Year 2,2,300 hours in Year 3, and 1,260 hours in Yeat 4 Required: Determine the amount of depreciation expense for the years ended December 31 , Year 1 , Year 2 , Year 3 , and Year 4 , by (a) the straight-dine method, (b) units-of-activity method, and (c) the double-decining balance method: Note: FOR DECLINING BALANCE ONLY, round the multiplier to four decimal places. Then round the answer for each year to the nearest whole dollar. c. Double-declining-balance method Feedback Theck My Work a. Asset cost minus residual value equals depreciable cost. Sum the yearly deprecia