At the beginning of June, Circuit Country has a balance in inventory of $3,000.
The following transactions occur during the month of June.
June 2 Purchase radios on account from Radio World for $2,700, terms 1/15, n/45.
June 4 Pay freight charges related to the June 2 purchase from Radio World, $400.
June 8 Return defective radios to Radio World and receive credit, $400.
June 10 Pay Radio World in full.
June 11 Sell radios to customers on account, $5,000 that had a cost of $3,200.
June 18 Receive payment on account from customers, $4,000.
June 20 Purchase radios on account from Sound Unlimited for $3,800, terms 3/10, n/30.
June 23 Sell radios to customers for cash, $5,300 that had a cost of $3,600.
June 26 Return damaged radios to Sound Unlimited and receive credit of $500.
June 28 Pay Sound Unlimited in full.

Required:
1. Assuming that Circuit Country uses a perpetual inventory system, record the transactions.
2. Prepare the top section of the multiple-step income statement through gross profit for the month of June.