Ivanhoe Warehouse distributes hardback books to retail stores and extends credit terms of $\frac{4}{10},\frac{n}{30}$ to all of its customers. During the month of June, the following merchandising transactions occurred.

June $1$ Purchased books on account for $$2,775($including freight$)$ from Catlin Publishers, terms $4/10,$ n$/30.$

$3$ Sold books on account to Garfunkel Bookstore for $$900.$ The cost of the merchandise sold was $$800.$

$6$ Received $$75$ 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 $$1,500.$ The cost of the merchandise sold was $$800.$

$20$ Purchased books on account for $$800$ from Priceless Book Publishers, terms $\frac{3}{15},\frac{n}{30}.$

$24$ 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.$