The per-unit production costs for a product is as follows: \$25 direct materials; $15 direct labour; $20 variable overhead. In addition, there is a $60,000 fixed overhead per week. Period costs are $10 variable selling costs per unit, and $150,000 fixed selling and administrative costs per week. The selling price is $120. What is the break-even point? 1,000 units 3,500 units 4,200 units None of the listed choices are correct