Assume Beta Company uses the perpetual inventory method and engaged in the following transactions 1) Purchased $8,000 of merchandise on account under terms 3/10, n/30. 2) Returned $800 (ist price) of merchandise to the supplier before payment was made. 3) Paid the account payable within the discount period. 4) Sold the merchandise for $10,400 cash. The amount of gross margin from the four transactions is Multiple Choice $3,416 $3.440 $2,184 $2,400