Martinez Company�s relevant range of production is 7,500 units to 12,500 units. When it produces and sells 10,000 units, its unit costs are as follows: Amount per Unit Direct Materials $6.00, Direct Labor $3.50, Variable manufacturing overhead $1.50, Fixed Manufacturing overhead $4.00, Fixed selling expense $3.00, Fixed administrative expense $2.00, Sales Commissions $1.00, and Variable administrative expense $0.50.