Pronghorn Warehouse distributes hardback books to retail stores and extends credit to all of its customers. During the month of June, the following merchandising transactions occurred.

June 1		Purchased books on account for $2,775 from Goldenrod Publishers.
3		Sold books on account to Garfunkel Bookstore for $1,500. The cost of the merchandise sold was $800.
6		Received $75 credit for books returned to Goldenrod Publishers.
9		Paid Goldenrod Publishers in full.
15		Received payment in full from Garfunkel Bookstore.
17		Sold books on account to Bell Tower for $1,500. The cost of the merchandise sold was $800.
20		Purchased books on account for $800 from Priceless Book Publishers.
24		Received payment in full from Bell Tower.
26		Paid Priceless Book Publishers in full.
28		Sold books on account to General Bookstore for $1,000. The cost of the merchandise sold was $800.
30		Granted General Bookstore $290 credit for books returned costing $70.

Prepare a tabular summary to record the transactions for the month of June for Pronghorn Warehouse using a perpetual inventory system.

My questions is only about the boxes I got wrong, the ones that are not green.

Retained Earnings Cash +Accts. Rec. + Inv = Accts. Pay. + Common Stock+ Rev Exp June 1 2,775 2,775 1,500 1,500 Sales revenue -800 -800 Cost of goods sold -75 75 9 2,775 15 1,500 1,500 17 1,500 1,500 Sales revenue -800 800 Cost of goods sold 20 800 800 1,500 1,500 26 800 B0o 28 1,000 1,000 Sales revenue 800 800 Cost of goods sold 30 290 290 Sales returns & allowances 70 70 Cost of goods sold Retained Earnings Cash +Accts. Rec. + Inv = Accts. Pay. + Common Stock+ Rev Exp June 1 2,775 2,775 1,500 1,500 Sales revenue -800 -800 Cost of goods sold -75 75 9 2,775 15 1,500 1,500 17 1,500 1,500 Sales revenue -800 800 Cost of goods sold 20 800 800 1,500 1,500 26 800 B0o 28 1,000 1,000 Sales revenue 800 800 Cost of goods sold 30 290 290 Sales returns & allowances 70 70 Cost of goods sold