Worst Buy sells computers and includes a 2-year assurance warranty that requires the company to replace defective parts. During 2020, the company sold 1,200 computers. The company has estimated the total 2-year warranty costs will be $100 per computer. NO warranty work was performed on these computers during 2020. In 2021, Worst incurred $40,000 of warranty costs for parts relative to 2020 computer sales. Prepare the entries to reflect any warranty expense or warranty liabilities for 2020 and/or 2021.