DS Unlimited has the following transactions during August. August 6 Purchases 88 handheld game devices on account from GameGirl, Incorporated, for $290 each, terms 1/10, n/60. August 7 Pays $490 to Sure Shipping for freight charges associated with the August 6 purchase. August 10 Returns to GameGirl eight game devices that were defective. August 14 Pays the full amount due to GameGirl. August 23 Sells 68 game devices purchased on August 6 for $310 each to customers on account. The total cost of the 68 game devices sold is $19,939.00