A machine was purchased on January 1, 2012 for $870,000, estimated salvage value $125,000 and estimated service life of 10 years. Required:

A machine was purchased on January 1, 2012 for $870,000, estimated salvage value $125,000 and estimated service life of 10 years.

Required: If the annual depreciation expense for 2015 was $94,818; what depreciation method was used? Round all answers to the nearest whole dollar.

***** I don't need the answer, i need to understand how you arrived at it*******