Depreciation by units-of-activity Method Prior to adjustment at the end of the year, the balance in Trucks is $286,700 and the balance in Accumulated Depreciation-Trucks is $34,346 Details of the subsid are as follows Estimated Residual Value Estimated Useful Life Accumulated Depreciation at Beginning of Year Miles Operated During Year Truck Cost No. $54,7007,100 78,200 10,200 42,600 3,500 111,200 16,200 170,000 40,000 230,000 250,000 $646 9,000 24,700 26,000 27,000 41,000 50,000 a. Determine the depreciation rates per mile and the amount to be credited to the accumulated depreciation section of each of the subsidiary accounts for the miles operated during the current year. Round the rate per mile to two decimal places and credit to accumulated depreciation to the nearest dollar Truck No. Rate per Mile (in cents) Miles 26,000 27,000 41,000 50,000 Total