Wildhorse Corporation purchased a truck at the beginning of 2020 for $59,000. The truck is estimated to have a salvage value of $2,360 and a useful life of 188,800 miles. It was driven 27,140 miles in 2020 and 36,580 miles in 2021. Compute depreciation expense using the units-of-production method for 2020 and 2021. Depreciation expense for 2020 $ Depreciation expense for 2021 $