Brightwater Retail uses a perpetual inventory system. The following transactions occurred in June 2026.
| Date | Event |
|---|
| June 5 | Sold merchandise on account for $30,000, terms 2/10, n/30. The merchandise cost $18,000. |
| June 8 | The customer returned merchandise with a selling price of $5,000 (cost $3,000). |
| June 14 | Received the balance due from the customer, within the discount period. |
Required: Prepare the journal entries. Record each sale and return with the revenue entry and the related cost-of-goods-sold entry (perpetual system), and apply the sales discount on collection.