P5-1A. Journal Entries For Merchandise Transactions on Seller's and Buyer's Books-Perpetual System

The following transactions occurred between the Decker Company and Mann Stores, Inc., during March:

Mar. 8 Decker sold $14,000 worth of merchandise ($9,600 cost) to Mann Stores with items of 2/10, n/30.

10 Mann Stores paid freight charges on the shipment from Decker Company, $500.

12 Mann Stores returned $2,000 of the merchandise ($1,600 cost) shipped on March 8.

17 Decker Received full payment for the net amount due from the March 8 sale.

20 Mann Stores returned goods that had been billed originally at $800 ($600 cost). Decker issued a check for $784.

Required

Prepare the necessary journal entries for (a) the books of Decker Company and (b) the books of Mann Stores, Inc. Assume that both companies use the perpetual inventory system.