Depreciation by units-of-activity Method Prior to adjustment at the end of the year, the balance in Trucks is $435,400 and the balance in Accumulated Depreciation-Trucks is $132,280. Details of the subsidiary ledger are as follows: Accumulated Miles Estimated Estimated Depreciation Operated Truck Residual Useful at Beginning During No. Cost Value Life of Year Year 1 $86,000 $12,900 210,000 miles 31,500 miles 2 115,400 13,848 400,000 $23,080 40,000 104,000 14,560 216,000 $83,200 21,600 130,000 15,600 240,000 $26,000 28,800 3 4 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 thu 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 Rate per Mile Miles Accumulated Truck No. (in cents) Operated Depreciation 31,500 2 40,000