Flounder 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 $$2,250$ from Catlin Publishers.

$3$ Sold books on account to Garfunkel Bookstore for $$1,400.$ The cost of the merchandise sold was $$750.$

$6$ Received $$50$ credit for books returned to Catlin Publishers.

$9$ Paid Catlin Publishers in full.

$15$ Received payment in full from Garfunkel Bookstore.

$17$ Sold books on account to Bell Tower for $$1,400.$ The cost of the merchandise sold was $$900.$

$20$ Purchased books on account for $$750$ 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 $$2,850.$ The cost of the merchandise sold was $$750.$

$30$ Granted General Bookstore $$150$ credit for books returned costing $$45.$

Prepare a tabular summary to record the transactions for the month of June for Flounder Warehouse using a perpetual inventory system. Include margin explanations for the changes in revenues and expenses. $($Enter negative amounts using either a negative sign preceding the number eg$.-45$ or parentheses e$.$g$.(45).)$