Chaps bikes purchased a vehicle for $30,000 on August 21, 2017. The company planned to use it for 100,000 kilometers or about 3 years and then sell it for $10,000. The actual kms driven were-

2017-----------------------10250 kms

2018-----------------------33700 kms

2019-----------------------37980 kms

2020-----------------------19710 kms

Calculate depreciation from 2017 to 2020 using straight line and units of production method.