Answer:
$66,323.37
Explanation:
Depreciation expense under the double declining method = adjustment factor × net book value
Adjustment factor = 2 × (1/useful life )
2 × (1/3) = 0.67
Depreciation expense in 2020 = 0.67 × $909000 = $609,030
Net book value = $909000 - $609,030=$299,970
Depreciation expense in 2021 = 0.67 × $299,970 = $200,979.90
Net book value = $299,970 - $200,979.90 = $98,990.10
Depreciation expense in 2022 = 0.67 × $98,990.10 = $66,323.37