Problem 11-1

Tamarisk Company purchased Machine #201 on May 1, 2017. The following information relating to Machine #201 was gathered at the end of May.

Price		$90,100
Credit terms		2/10, n/30
Freight-in		$ 848
Preparation and installation costs		$ 4,028
Labor costs during regular production operations		$11,130

It is expected that the machine could be used for 10 years, after which the salvage value would be zero. Tamarisk intends to use the machine for only 8 years, however, after which it expects to be able to sell it for $1,590. The invoice for Machine #201 was paid May 5, 2017. Tamarisk uses the calendar year as the basis for the preparation of financial statements.

Compute the depreciation expense for the years indicated using the following methods.

	Depreciation Expense
Straight-line method for 2017	$7,632.00
Sum-of-the-years'-digits method for 2018	1.$_____________
Double-decling-balance method for 2017	$15,529.00

The answer is not 14,480. I need help with the sum-of-the-years'-digits method for 2018.