During its first year of operations, Silverman Company paid $11,360 for direct materials and $11,100 for production workers' wages. Lease payments and utilities on the production facilities amounted to $10,100 while general, selling, and administrative expenses totaled $3,400. The company produced 7,400 units and sold 4,600 units at a price of $6.90 a unit. What is the amount of gross margin for the first year?

$12,320

$11,500

$31,740

$9,280