mog Prepare the necessary journal entries to record the following transactions, assuming Eustace Company uses a perpetual inventory system. Eustace sells $45,000 of merchandise, terms 1/10, n/30. The merchandise cost $30,000. (b) The customer in (a) returned $4,000 of merchandise to Eustace. The merchandise returned cost $2,400. Eustace received the balance due within the discount period