A machine with a cost of $72,158.00 has an estimated residual value of $5,715.00 and an estimated life of 7 years or 19,974 hours. It is to be depreciated by the units-of-output method. What is the amount of depreciation for the second full year, during which the machine was used 4,128 hours? Do not round your intermediate calculations. O $18,983.71 $13,731.69 $9,491.86 $14,912.80