On September 1, Boylan Office Supply had an inventory of35calculators at a cost of $12each. The company uses a perpetual inventory system. During September, the following transactions occurred.

Sept. 6 Purchased with cash 95calculators at $25each from Guthrie Co.

Sept. 9 Paid freight of $95on calculators purchased from Guthrie Co.

Sept. 10 Returned3calculators to Guthrie Co. in exchange for $78cash (including reimbursement for freight fee) because they did not meet specifications.

Sept. 12 Sold30calculators costing $26(including freight) for $35each to Lee Book Store, terms n/30.

Sept. 14 Granted credit of $35to Lee Book Store for the return of one calculator that was not ordered.

Sept. 20 Sold32calculators costing $26for $34each to Orr's Card Shop, terms n/30.