Assume the perpetual inventory method is used. 1) The company purchased $12,500 of merchandise on account under terms 2/10, n/30. 2) The company returned $1,200 of merchandise to the supplier before payment was made. 3) The liability was paid within the discount period. 4) All of the merchandise purchased was sold for $18,800 cash. What effect will the return of merchandise to the supplier have on the accounting equation?