Under contract, ABC Corporation delivers 500 units to Customer A for $200 each on 1 March 2021. ABC's documented policy is to allow a customer to return any unused product within 30 days and receive a full refund. The cost of each product is $150. Based on historical experience, ABC estimates that 2% of the units will be returned. ABC expects that the returned products can be resold. On March 15^th, the customer returned 8 units to ABC. No other returns were received during the month. Record all of ABC Corps journal entries for the month of March 2021.