Exercise 11-21 (Static) Change in estimate; useful life of patent [LO11-4, 11-5) Van Frank Telecommunications has a patent on a cellular transmission process. The company has amortized the patent on a straight- line basis since 2017, when it was acquired at a cost of $9 million at the beginning of that year. Due to rapid technological advances in the industry, management decided that the patent would benefit the company over a total of six years rather than the nine-year life being used to amortize its cost. The decision was made at the beginning of 2021. Required: Prepare the year-end journal entry for patent amortization in 2021. No amortization was recorded during the year. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field. Enter your answer in millions rounded to 1 decimal place (i.e., 5,500,000 should be entered as 5.5)). View transaction list Journal entry worksheet Record amortization expense. Note: Enter debits before credits. Event General Journal Debit Credit 1 Record entry Clear entry View general journal