ABC Equipment Company sells computers for S1,500 each and also gives each customer a 2-year warranty that requires the company to perform periodic services and to replace defective parts. During 2017, the company sold 1,200 computers. Based on past experience, the controller estimates the total 2-year warranty costs as $40 for parts and S60 for labor per unit. (Assume sales all occur at December 31, 2017.) In 2018, ABC Equipment Company incurred actual warranty costs relative to 2017 computer sales of $16,000 for parts and $24,000 for labor. Using the attached T-account template, prepare the entries to record the above transactions for 2017 and 2018