Accurate Metal Company sold 32,500 units of its product at a price of $260 per unit. Total variable cost per unit is $159, consisting of $148 in variable production cost and $8 in variable selling and administrative cost. Compute the manufacturing margin for the company under variable costing.

a. $8,450,000

b. $3,640,000

c. $3,380,000

d. $5,167,500

e. $4,907,500