In 2018, the internal auditors of Development Technologies, Inc., discovered that a $4 million purchase of merchandise in 2018 was recorded in 2017 instead. The physical inventory count at the end of 2017 was correct. Assume the company uses a periodic inventory system. Required: Prepare the journal entry needed in 2018 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.)