Crane Company phrchased equipment on March 31,2021, at a cost of $ 284,000.Management is considering the merits of using the diminishing- balance or units- of- production method of depriciation instead of straight-line method,which it currently uses for other equipment.The new equipment has an residual value of $ 4000 and an estimated useful life of either four years or 80,000 units.Demand for the products produced by the equipment is sporadic so the equipment will be used more in some years than in others.Assume the equipment produces the following number of units each year: 14200 units in 2021; 20,600 units in 2022; 20,200 units in 2023; 20,000 units in 2024; and 5,000 units in 2025. Crane has a december 31 year end.

Prepare seperate depriciation schedules for life of the equipment using (a) Straight-line-method

(b) Double- diminishing-balance method for the year 2021 to 2025?