The following is the transaction of the trading company "Mars" in December 2020 by using the "Periodic Inventory System" method. On 2 December 2020 the company purchased $4,500 of merchandise on credit 2/10. On December 5, 2020, the company pays cash delivery fees on the order dated December 2, 2020 for $ 200. On December 6, 2020, the company sold merchandise online a 2/10 credit of $6,000. On December 7, 2020, the company returned the purchase of goods done on December 2, 2020 for $ 500. On 8 December 2020 the company purchased $ 3,500 of merchandise in cash. On 12 December 2020 the company paid the invoice for the purchase of goods which are due with a 2% discount for payment in time 10 days. On December 13, 2020 the company received sales returns from consumers for $500. On December 16, 2020 the company received payment for merchandise which is sold on credit on December 6, 2020 by giving 2% discount on sales because it is paid on 10 days.