Assume the perpetual inventory method is used.

1. 1) The company purchased $12,500 of merchandise on account under terms 3/10, n/30.
2. 2) The company returned $2,000 of merchandise to the supplier before payment was made.
3. 3) The liability was paid within the discount period.
4. 4) All of the merchandise purchased was sold for $19,000 cash.

The amount of gross margin from the four transactions is: