Part (): Twilight Manufacturing's property, plant and equipment records reveal the following financial information.

Equipment	Cost	Residual value	Purchase date	Depreciation method	Estimated useful life	Units produced in 2022
Tractor	60000	12000	06 Dec 21	Straight line	5years	n/a
Mining gear	70000	8000	18 Oct 22	Units of production	50000 units	50000
Conveyor belts	130000	150000	12 Jub 22	Double declining balance	10years	n/a
Generators	100000	10000	23may 19	Straight line	8years	n/a

Calculate the depreciation expense and Net Book value for each equipment item for the year ended December 31, 2022 using the nearest whole month method

Part 2

Complete the note disclosure for the fixed asset section of Twilight Manufacturing's balance sheet as at December 31, 2022 using the format provided below.

Property,land,equipment	Cost dec31 2021	Additions 2022	Cost Dec 31 2022	Acc dep Dec31,2021	Dep exp31, 2021	Acc dep Dec 31,2022	Net book value Dec 31,2022
Tractor	60000		60000				60000
Mining gear		70000
Conveyor belts		30000
Generators	100000		100000				100000

Part (iii):

1)Slack Co. has been operating radio stations for the last 20 years. In the process they consolidated their foothold by buying smaller regional stations and have accumulated $12.5 Million in goodwill on the balance sheet in the process.

Slack has not invested in the technology and is not developing podcasts or other social media based means of communication. Their listener levels are down 10% per year over the last 3 years and revenue from advertisers is starting to drop by the same rates as listeners while expenses are consistent.

2)Explain what could cause the impairment of goodwill at Slack. How often should goodwill be tested to see if it is impaired?