On June 10, Diaz Company purchased $8,000 of merchandise on account from Taylor Company, FOB shipping point, terms 2/10, n/30. Diaz pays the freight costs of $400 on June 11. Goods totaling $300 are returned to Taylor for credit on June 12. On June 19, Diaz pays Taylor Company in full, less the discount. Both companies use a perpetual inventory system.