Depreciation by units-of-activity Method Prior to adjustment at the end of the year, the balance in Trucks is $409,000 and the balance in Accumulated Depreciation-Trucks is $124,000. Details of the subsidiary ledger are as follows: Accumulated Depreciation Miles Operated Truck Estimated Residual No. Cost Value Estimated Useful Life at Beginning of Year During Year 1 $80,000 $12,000 220,000 miles 33,000 miles 2 114,500 13,740 280,000 $22,900 28,000 3 4 97,000 117,500 13,580 14,100 206,000 $77,600 20,600 310,000 $23,500 37,200 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. Enter all values as positive amounts. Credit to Accumulated Rate per Mile Miles Truck No. (in cents) Operated Depreciation 1 33,000 2 28,000 3 20,600 4 37,200 Total b. Journalize the entry to record depreciation for the year.