A company purchased an equipment for $180,000 on January 1, 2018. This equipment has an expected life of 15 years, and its salvage value is $0. In January 2022 the maintenance team noticed that the equipment will only be able to last another eight years.

1. Using a straight-line approach, what is the depreciation expense in 2020?

2. Using a straight-line approach, what is the depreciation expense in 2024?