Please solve the following transactions using periodic and the perpetual inventory system. Thank you!

June 5: Purchased $30,000 of merchandise on account, terms 2/10, n/30 June 8 Returned merchandise purchased on account on June 5 $500 June 15: Paid for purchase of June 5, less return of $500 and discount of $590 [(S30,000 - s500) 2%] June 18: Sold merchandise on account, $12,500, 1/10, n/30. The cost of the merchandise sold was $9,000 June 21: Received merchandise returned on account, $4,000. The cost of merchandise returned was $2.800 June 5: Purchased $30,000 of merchandise on account, terms 2/10, n/30 June 8 Returned merchandise purchased on account on June 5 $500 June 15: Paid for purchase of June 5, less return of $500 and discount of $590 [(S30,000 - s500) 2%] June 18: Sold merchandise on account, $12,500, 1/10, n/30. The cost of the merchandise sold was $9,000 June 21: Received merchandise returned on account, $4,000. The cost of merchandise returned was $2.800