A trademark was acquired at the beginning of 2016 for $40,000. The trademark was expensed when purchased. The trademark should have been amortized...

A trademark was acquired at the beginning of 2016 for $40,000. The trademark was expensed when purchased. The trademark should have been amortized over 10 years.

I need to figure out the correcting entry if the books were still open for the year 2018, and if they were closed.

My attempt is:

Books Open

Debit---