On January 1, 2015, a machine was purchased for $105,300. The machine has an estimated salvage value of $7,020 and an estimated useful life of 5 years. The machine can operate for 117,000 hours before it needs to be replaced. The company closed its books on December 31 and operates the machine as follows: 2015, 23,400 hrs; 2016, 29,250 hrs; 2017, 17,550 hrs; 2018, 35,100 hrs; and 2019, 11,700 hrs