During its first year of operations, Silverman Company paid $16,360 for direct materials and $10,300 for production workers' wages. Lease payments and utilities on the production facilities amounted to $9,300 while general, selling, and administrative expenses totaled $4,800. The company produced 6,200 units and sold 3,800 units at a price of $8.30 a unit. What is the amount of gross margin for the first year?