of calculators. The company uses a perpetual inventory system. During September, these transactions occurred. Sept. 6 Purchased calculators from Dragoo Co. at a total cost of $1,600, on account, terms n//30, FOB shipping point. 9 Paid freight of $50 on calculators purchased from Dragoo Co. 10 Returned calculators to Dragoo Co. for $66 credit because they did not meet specifications. 12 Sold calculators costing $520 for $690 to Fryer Book Store, on account, terms n/ 30 . 14 Granted credit of $45 to Fryer Book Store for the return of one calculator that was not ordered. The calculator cost $34. 20 Sold calculators costing $570 for $760 to Heasley Card Shop, on account, terms n/30. Instructions Journalize the September transactions