Could you solve clearly? Thanks a lot!!

Cantona Manufacturing Co. purchased a machine on July 1, 2010, for $45,0 estimated five year life with a salvage value of $5,000. me on July 1, 2010, for $45,000. The machine has an Assuming Cantona uses double-declining balance method, Accui ses double-declining balance method. Accumulated Depreciation at the a. $ 8,000 b. $9,000 $20,800 d. $22,800 e. $23,400