One of the accelerated methods is called the sum-of-years-digits method.

Table 6-6 compares the depreciation expense under the straight-line, sum-of-years-digits, and declining balance methods for the Farmers' truck.

This allocation for partial periods can also be performed for the sum-of-years-digits and declining-balance methods.

If the Farmers decided to use the sum-of-years-digits method for the truck purchased on October 1, 20X1, depreciation for the first 12 months is $4,000.

A similar schedule can be set up if the Farmers decided to use the double-declining balance method: October 20X1: $6,000 / 12 = $500 November 20X1: 6,000 / 12 = 500 December 20X1: 6,000 / 12 = 500 Total depreciation for 20X1: $1,500 January 20X2: 6,000 / 12 = 500 February 20X2: 6,000 / 12 = 500 March 20X2: 6,000 / 12 = 500 April 20X2: 6,000 / 12 = 500 May 20X2: 6,000 / 12 = 500 June 20X2: 6,000 / 12 = 500 July 20X2: 6,000 / 12 = 500 August 20X2: 6,000 / 12 = 500 September 20X2: 6,000 / 12 = 500 October 20X2: 3,600 / 12 = 300 November 20X2: 3,600 / 12 = 300 December 20X2: 3,600 / 12 = 300 Total depreciation for 20X2: $5,400 As in the case for the sum-of-years-digits method, the first 12-month amount of $6,000 is allocated to the last three months of 20X1 and the first nine months of 20X2.