During its first year of operations, Silverman Company paid $8,065 for direct materials and $9,600 for production workers' wages. Lease payments and utilities on the production facilities amounted to $8,600 while general, selling, and administrative expenses totaled $4,100. The company produced 5,150 units and sold 3,100 units at a price of $7.60 a unit. What is the amount of gross margin for the first year?