Marigold Corp. purchased machinery on January 1,2019 for $548,000. Straight-line depreciation is used. At the time management estimated that the machinery would be used over 10 years and would have a residual value of $61,000. It is now December 31,2023 and management has determined that the machine's life is now a total of 12 years with no residual value. No adjusting journal entries have been recorded yet for the 2023 year-end. (a) Identify the type of accounting change and the treatment for this change