Depreciation by Units-of-activity Method Prior to adjustment at the end of the year, the balance in Trucks is $409,200 and the balance in Accumulated Depreciation-Trucks is $126,440. Details of the subsidiary ledger are as follows: Accumulated Miles Estimated Estimated Depreciation Operated Residual Useful at Beginning During Value Life of Year Year Truck No. Cost 1 $78,500 31,500 miles $11,775 210,000 miles 13,524 400,000 2 112,700 $22,540 40,000 3 100,500 80,400 22,000 14,070 220,000 14,100 250,000 4 117,500 23,500 30,000 a. Determine for each truck the depreciation rate per mile and the amount to be credited to the accumulated depreciation section of each subsidiary account for the miles operated during the current year. Keep in mind that the depreciation taken cannot reduce the book value of the truck below its residual value. Round the rate per mile to two decimal places. Rate per Mile (in cents) Credit to Miles Accumulated Operated Depreciation Truck No. 1 $ 31,500 $ 2 40,000 3 22,000 4 30,000 Total Feedback Check My Work b. Journalize the entry on December 31 to record depreciation for the year. If an amount box does not require an entry, leave it blank. Depreciation Expense-Trucks Accumulated Depreciation-Trucks 8