Answer:
(a) $5,738 ; $21,516
(b) $1.21 ; $484
Step-by-step explanation:
Missing information:
(a) Declining-balance using double the straight-line rate for 2017 and 2018.
(b) Calculate the depreciation cost per hour. Depreciation cost per hour Units-of-activity for 2017, assuming machine usage was 400 hours.
(a) Depreciation under double declining rate is double the straight line rate :
= (1 ÷ Straight line rate ] × 2
= (1 ÷ 8) × 2
= 0.25 or 25%
Depreciation for each year :
= Opening book value × Depreciation rate × (Months used ÷ 12 )
Months used in 2017 = October to December = 3 months
So, Depreciation for 2017 :
= $91,800 × 25% × 3/12
= $5,738
Book value at the beginning of 2018:
= Book value in 2017 - Depreciation for 2017
= $91,800 - $5,738
= $86,062
Depreciation for 2018 :
= $ 86,062 × 25% × 12/12
= $21,516
(b) Depreciation cost per hour :
= (Cost - Estimated salvage value) ÷ Expected working hours
= ($91,800 - $7,600) ÷ 69,600
= $1.21
Depreciation for 2017 :
Number of hours × Depreciation per hour
= 400 × $1.21
= $484