Using fixed asset disclosure to compare companies'/Fixed asset turnover and average age of depreciable assets

The following PP & E information for fiscal year 2017 is available:

	Harley Davidson	Amazon ( in millions)	Walgreens
Net sales	$4,915	$107,006	$117,351
Historical cost	$3,285.3	$68,573	$22,935
Accumulated depreciation	2,317.5	19,707	8,600
Net PP & E	$ 967.8	$48,866	$14,335
Annual depreciation	222	11,478	1,718
Capital expenditures	206	11,995	1,325
Depreciation method	SL	SL	SL
Useful life- Buildings	30	20-40	20-50
Useful life- Furniture & Fixtures	5	3-10	3-20
Useful tife- IT Equipment	3-7	3-5	3-5

Required:

1. Estimate the total useful life, age and remaining useful life for each company.
2. Interpret the estimates. What items might effect comparisons across these companies
3. Calculate and compare fixed asset turnover for each company