Answer:
gain if sold at the end of 2021 = $1,600
loss if sold at the end of 2023 = -$3,824
gain if sold at the end of 2027 = $2,000
Step-by-step explanation:
MACRS half year convention depreciation rate for 5 year recovery period
year depreciation % depreciation expense book value
0 $80,000
2020 20% $16,000 $64,000
2021 32% $25,600 $38,400
2022 19.20% $15,360 $23,040
2023 11.52% $9,216 $13,824
2024 11.52% $9,216 $4,608
2025 5.76% $4,608 $0
gain if sold at the end of 2021 = $40,000 - $38,400 = $1,600
loss if sold at the end of 2023 = $10,000 - $13,824 = -$3,824
gain if sold at the end of 2027 = $2,000