On January 1, 2018, a machine was purchased for $92,500. The machine has an estimated salvage value of $5,500 and an estimated useful life of 5 years. The machine can operate for 100,000 hours before it needs to be replaced. The company closed its books on December 31 and operates the machine as follows: 2018, 20,000 hrs; 2019, 25,000 hrs; 2020, 15,000 hrs; 2021, 30,000 hrs; and 2022, 10,000 hrs.