Could someone please check my work?

Okay so the questions needed. For Double Declining Balance and Sum of Years Digits will you get $0 for the the last year of depreciation?

I just figured out how to make Sum of year correctly. DDB is ending with $0 still and have been so I think Im doing it right.

1. Purchase price of tractor: $257,000 a. Salvage value: $20,560 b. Useful life: 7 years Calculate the periodic (yearly) depreciation for the tractor using: Straight line: $33,777.15 each year DDB: $73,428.58 first year SYD: $59,110 first year 2. Purchase price of chile processing equipment: $100,000 a. Salvage value: $12,000 b. Useful life: 10 years Calculate the periodic depreciation for the chile processing equipment using: Straight line: $8,800 each year DDB: SYD: 7 1. SL:6257000 -20.560) -$33,777.145 yrs DDB :(257000). 2 # 73,428.57 1st year Fyrs SYD:( 7 ).(257606 - 20560) - $59,110 Ist yr 236,440 28 DDB - $61,190.48:2 $48,952.38;3 $36,714,29:4 $24,476.19:5 $12,238.09:6 10:7 SYD:50,665.71:2 42,221.43:3 33,777.14:4 25,832.86:5 16,888.57:6 8.444.29:7. 2. SL:(600.00-12.000) #8,800 each yr yrs DDB: (100,000) a-$20,000 1st yr 10 yrs DDB: $317.777.70: $15,555,56 3 13,333.33:46 11.111.11:5 $8,888,89:6 16,666.67" :7_44444.44:8 #2,222,22 :9 10