Cougar Corp (December 31st fiscal year end) purchased a piece of machinery, which it will use to produce inventory, on August 1st, 2016 for $450,000. The estimated salvage value is $50,000. The estimated useful life is 4-years. The estimated total activity levels for this machinery over its useful life are production of 1,000,000 units of inventory and working hours of 50,000 hours.

Actual activity for 2016-2018 is as follows:

2016: 100,000 units of inventory produced; 8,500 working hours

2017: 275,000 units of inventory produced; 14,000 working hours

If necessary, round your answer to the nearest dollar. Do not use dollar signs or decimals.

A) What is the amount of accumulated depreciation associated with this machinery as of December 31st, 2018 assuming Cougar Corp uses straight-line depreciation?

B) What is the amount of depreciation expense for this machinery in 2016 assuming Cougar Corp uses activity based depreciation based on working hours?

C) What is the book value (cost - accumulated depreciation) associated with this machinery as of December 31st, 2017 assuming Cougar Corp uses sum-of-the-years'-digits depreciation method?