Printer Supply Company sells computer printers and printer supplies. One of its products is a toner cartridge for laser printers. At the beginning of the year, there were $200$ cartridges on hand at a cost of $$60$ each. During the year, Printer Supply purchased $1,600$ cartridges at $$60$ each, sold $800$ cartridges at $$95$ each, and sold an additional $750$ cartridges at $$102$ each after a midyear selling price increase. Printer Supply returned $10$ defective cartridges to the supplier. In addition, customers returned $15$ cartridges that were purchased at $$102$ to Printer Supply for various reasons. Assume that Printer Supply uses a periodic inventory system.

$1.$ What is the cost of ending inventory, cost of goods sold, and gross profit?