In 2021, the internal auditors of Development Technologies, Inc., discovered that a $4 million purchase of merchandise in 2021 was recorded in 2020 instead. The physical inventory count at the end of 2020 was correct. Assume the company uses a periodic inventory system. Required: Prepare the journal entry needed in 2021 to correct the error. (Ignore income taxes.) (Enter your answers in millions (i.e., 5,000,000 should be entered as 5). If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list View journal entry worksheet General Journal No Event 1 1 Purchases Retained earnings Debit Credit 4,000,000 4,000,000