Martinez Company's relevant range of production is 7.900 units to 12,900 units. When it produces and sells 10,400 units, its unit costs are as follows Amount Pec Unit Direct labour Direct materials Variable manufacturing overhead $6.00 $3.90 $1.90 Fixed manufacturing overhead $4.00 Fixed selling expense $3.00 Fixed administrative expense $2.00 Sales commissions $1.00 Variable administrative expense $88.30 Required: If 12.900 units are sold, what is the variable cost per unit sold? (Round your answer to 2 decimal places.) Variable cost per unit sold