On Jаnuаry 1, 2020, а cоmpany purchased a cоmmercial truck fоr $48,000 and uses the straight-line depreciation method. The truck has a useful life of eight years and an estimated residual value of $8,000. On December 31, 2022, the company sold the truck for $30,000. What amount of gain or loss should the company record on December 31, 2022?